Guides · Updated weekly
Sharing files, explained
Step-by-step guides for sending large files, protecting sensitive documents, and sharing anything as a link people can open in their browser. Each guide covers Mac, Windows and phone, and lists the free options first.
69 articles
Update a PDF, keep the same link
LatestHow-to
How to update a PDF without changing the link (or the QR code)
Fixed a price, a typo or a date? You don't need a new link. Replace the file behind the one you already shared and the URL, the printed QR code, the view count and every setting stay exactly the same. How it works, what carries over, how to undo it, and how Google Drive and Dropbox compare.
Read it
Deliver a lead magnet, get the email
free-guide.pdf Live/p/guide7 min read
How to deliver a lead magnet PDF and capture emails (2 ways)
A lead magnet only works if the email step works. Compare the two set-ups, a signup form that sends the PDF in a welcome email, and an email gate on the PDF link itself that still asks when the link is forwarded or scanned. Step by step, what the reader sees, exporting leads to your email tool, and the honest limits.
AnalyticsRead itShare an HTML file as a live link
report.html Live/p/report7 min read
How to share an HTML file as a link that opens as a web page
Email an .html file and people see code, a warning or nothing. Upload it to a host that renders it and they see the live page. How to make your file self-contained, what works inside the sandbox (scripts, CDN libraries, forms) and what doesn't, when to switch to a ZIP site, and how to share a Claude or ChatGPT page.
HostingRead itHow long a WeTransfer link lasts
footage.zip Live/p/handover6 min read
How long do WeTransfer links last? Free vs Starter vs Ultimate expiry (2026)
A free WeTransfer link lasts up to 3 days from the moment you send it, then the files are deleted for good. Starter has the same cap; only Ultimate can extend it, recover an expired transfer or set a link to never expire. What the recipient sees, how to re-send, and how to get a link with no timer at all.
TroubleshootingRead itDo Google Drive links expire?
brief.pdf Live/p/shared6 min read
Do Google Drive links expire? How long a Drive link lasts, and what actually ends it
Google Drive links have no time limit: they last as long as the file exists and its sharing setting stays open. What ends them is always an action, restricting access, an expiration date on a work account, emptying the Trash or an inactive account. Each case, what the recipient sees, and how to set a real expiry.
TroubleshootingRead itDiscord's real file size limit
gameplay.mp4 Live/p/clip6 min read
Max file size for Discord in 2026: free, Nitro Basic, Nitro and server boosts
Discord's upload limit is 20 MB free, 50 MB with Nitro Basic and 1 GB with Nitro, and two of those changed in August 2026 so most guides are wrong. Every tier, the server-boost exception, why videos and images fail under the limit, and how to send a bigger file without paying.
MessagingRead itSlack's 1 GB limit, and the catch
build.zip Live/p/handoff6 min read
Max file size for Slack: the 1 GB limit, the 90-day catch and what to do when an upload fails
Slack allows 1 GB per file on every plan. The limit that really bites on a free workspace is time, not size: files older than 90 days are hidden and data older than a year may be deleted. What Slack's help pages say today, why uploads under 1 GB still fail, and the fix for each case.
MessagingRead itLost them on page 4?
page-by-page reading
series-a-deck.pdf Live/p/series-a-deck6 min read
See which page readers stop on: page-by-page analytics for PDFs and decks
A view count tells you a deck was opened. Page-by-page analytics tells you how far people got, which pages held them and the exact page where most readers gave up. Here is what it measures, how to read the chart, what the biggest drop-off means and how to fix the page that loses your readers.
AnalyticsRead itTrack who opened your file
proposal.pdf Live/p/proposal7 min read
How to track a shared file: who opened it, for how long, and on what device
Send a link instead of an attachment and you can see every open: how many people, how long they actually spent, how far they got, their device, city and how they arrived, plus who came back. What each number means, how it is measured without cookies, and the honest limits.
AnalyticsRead itA data room without the VDR bill
due-diligence.zip Live/p/data-room7 min read
A virtual data room alternative for startups: share due diligence files and see who read them
Raising a seed or Series A round rarely needs an enterprise virtual data room. Put your deck, model, cap table and contracts behind one password-protected album link, control downloads, and see which files investors opened and how far they read. Plus when a real VDR is worth paying for.
SecurityRead it5 views, 1 reader
bots · previews · scanners
quote.pdf Live/p/quote6 min read
Why your file views look too high: bots, link previews and email scanners explained
A view seconds after you hit send, from a city the reader doesn't live in, is usually not a person. Chat link previews, email security scanners and crawlers all open links. How to spot them, how a good tracker keeps them out of your averages, and which numbers to trust instead.
AnalyticsRead itYour catalog as a link and QR
catalog.pdf Live/p/autumn-catalog6 min read
Turn a PDF brochure or catalog into a shareable link with a QR code
Share your brochure or product catalog as one link that opens on any phone, print it as a QR code, and update prices without reprinting: replace the file and the same code opens the new version. Plus how to see which pages people browse and whether the QR or the email did more work.
QR codesRead itLet Claude publish files as links
q3-report.html Live/p/q3-report7 min read
How to let Claude publish files as links (MCP setup)
Connect Claude Code, Cursor or VS Code to the Link in Seconds MCP server with one API key, and your AI assistant can publish the page, report or PDF it just made and hand you a public link. Here is the setup for each client, what to ask, what comes back, the limits and how to keep it safe.
AI agentsRead itUpload a file by API, get a link
report.pdf Live/p/report7 min read
Upload a file by API and get a public link (curl, Node, Python)
Turn any file into a public link from a script in three HTTP calls: ask for an upload URL, PUT the bytes straight to storage, then complete the upload. Working curl, Node and Python examples, plus safe retries, view-only links, listing your links and the errors you will actually see.
APIRead itIs your site agent-ready? 27 to 40
robots.txt Live/p/agent-ready8 min read
Is your site agent-ready? What isitagentready.com checks, and how we went from 27 to 40
We ran linkinseconds.com through Cloudflare's isitagentready.com and scored 27. Here is what the scanner checks, what we fixed first (Content Signals, Markdown for agents, discovery paths), how the score moved to 40, what we shipped next, and the checks we skipped on purpose.
AI agentsRead itServe Markdown to AI agents
pricing.md Live/p/pricing8 min read
Serve Markdown to AI agents with content negotiation (Next.js)
AI agents read Markdown far better than a page full of HTML chrome. With content negotiation, the same URL returns HTML to browsers and Markdown to any client that sends Accept: text/markdown. Here is how we built it in Next.js: the Accept check, the middleware rewrite, the converter, and the headers that keep caches honest.
DevelopersRead itContent Signals in robots.txt
robots.txt Live/p/robots6 min read
Content Signals in robots.txt: let AI cite you without training on you
robots.txt can say who may crawl, but not what they may do with your pages afterwards. Content Signals add that: search, ai-input and ai-train, each yes or no. Here is what each signal means, the exact line we publish, why user-uploaded files pushed us to say no to training, and how to add it in Next.js.
AI & SEORead itWhat is an MCP server?
server-card.json Live/p/mcp7 min read
What is an MCP server? A plain-English guide with a real example
An MCP server is a small service that gives an AI assistant new abilities, called tools, through one shared protocol. Here is what that means in plain English: tools, transports, how authentication works, what a real request looks like, and how to connect one, using our own file-publishing server as the example.
AI agentsRead itNo more 25 MB bounces
.pptx → one link · fonts intact
deck.pptx Live/p/deck6 min read
How to share a PowerPoint or Google Slides deck as a link
Email a .pptx and it bounces on size, loses your fonts, or opens as a wall of 'enable editing' warnings. A link fixes all three. Export the deck to PDF once, share one link that opens in any browser with no app and no download, and see when it gets opened. Here is the whole flow, and why PDF beats sending the raw slides.
DocumentsRead itFeedback in one place
no reply-all threads
draft.pdf Live/p/review6 min read
How to collect feedback on a file you shared
You send a proposal, a design, or a deck and get back a thread of scattered replies, or nothing. A shared link with comments turned on keeps every reaction in one place, on the file itself, and emails you the moment someone leaves one. Here is how to collect feedback on a shared file without a review tool, a login, or a chase-up email.
SharingRead itFormulas stay intact
.xlsx → one live link
budget.xlsx Live/p/sheet6 min read
How to share an Excel spreadsheet as a link
Emailing an .xlsx invites broken formulas, a dozen renamed copies, and 'which version is final?'. A link sends one canonical file: recipients open it in the browser and download the workbook without an account, and you can swap the file while the link stays the same. Here is how to share an Excel or Google Sheets file as a clean link, and when a PDF is the better choice.
DocumentsRead it2 GB isn't really 2 GB
12 apps · real limits
large.zip Live/p/limits9 min read
Every app's file size limit in 2026, and the second limit each one hides
WhatsApp says 2 GB and blurs your video at 16 MB. Slack says 1 GB per file and stops a free workspace at 5 GB total. Teams says 250 GB and quietly stores it in SharePoint. Here is the published limit for 14 apps, the one that actually stops you, and what each does when you go over.
ComparisonRead itMake a direct download link
release.zip Live/p/download7 min read
What a direct download link is, and how to make one
A normal share link opens a preview page; a direct download link starts the download the moment it is clicked. The difference is one HTTP header, not a different kind of URL. Here's what Content-Disposition actually does, how to get a direct link out of Drive and Dropbox, why those tricks keep breaking, and when a preview is the better choice.
How-toRead itEmbed a PDF on your website
handbook.pdf Live/p/embed7 min read
How to embed a PDF on a website (4 ways, and the one that works on phones)
The classic <embed> and <object> tags quietly fail on most mobile browsers, iOS Safari shows a blank box or a single frozen page instead of your document. Here are the four ways to put a PDF on a web page, what each one actually does on a phone, and the copy-paste iframe that behaves the same everywhere.
How-toRead itReduce a PDF's file size
report.pdf Live/p/smaller8 min read
How to reduce a PDF's file size, and how to tell when it simply won't shrink
Every guide tells you to run your PDF through a compressor. None tells you that a text-only PDF has almost nothing to compress, so you'll claw back 5% and still be over the limit. Here's how to diagnose what is actually making your PDF big, scans, images, or embedded fonts, and the realistic saving for each.
PDFsRead itLock it in 30 seconds
Mac · Windows · phone
contract.pdf Live/p/locked8 min read
How to password-protect a PDF for free (Mac, Windows, phone)
You don't need an Acrobat subscription to encrypt a PDF: macOS Preview, Microsoft Word and LibreOffice all export password-protected files for free, and LibreOffice gives you AES-256. Here's each method step by step, which encryption you actually get, and the two ways a PDF password fails you that nobody mentions.
SecurityRead itiPhone → Android
no AirDrop needed
video.mp4 Live/p/cross8 min read
How to send large files between iPhone and Android (2026)
AirDrop stops at Apple's edge and Quick Share was Android-only, so cross-platform transfers have always meant a messy workaround. In 2026 the two finally talk to each other, with real conditions attached. Here's what works now, what quietly compresses your video, and the method that doesn't care which phone anyone is holding.
How-toRead itNo sign-in wall
Figma → public link
design.fig Live/p/figma7 min read
Share a Figma design as a link anyone can open (no sign-in)
A Figma link can open a live prototype for anyone, or hit your client with a sign-in wall, expose your working file, and keep changing under them while they review. Here's how to get each sharing mode right, and when to export the design and send a flat link instead.
DesignRead itOver the 3 GB cap?
send it anyway
video.mp4 Live/p/send8 min read
WeTransfer limit reached? How to send the file anyway (free)
WeTransfer's free plan is metered two ways at once, 10 transfers and 3 GB total, and the error never says which one stopped you. Worse, neither resets on the 1st: the allowance runs on a rolling 30-day window. Here's how to tell the two apart, when your allowance really comes back, and why the cheapest paid plan doesn't lift the transfer cap.
TroubleshootingRead it25 MB, 20 MB, 20 MB
Gmail · Outlook · iCloud
attachment.pdf Live/p/attach7 min read
Email attachment size limits, and the hidden 33%
Gmail says 25 MB, Outlook says 25 MB, iCloud says 20 MB, and a 22 MB file still bounces. The reason is Base64: every attachment grows by about a third in transit, so the real ceiling is roughly 18 MB. Here's every provider's published limit, the usable limit after encoding, and what each one does when you go over.
ComparisonRead itSee who read page 4
free view tracking
deck.pdf Live/p/deck6 min read
The free DocSend alternative: see who opens your documents (2026)
DocSend removed its free plan and Dropbox retired Send & Track, so free open-tracking quietly disappeared in 2025. Here's how to send a PDF, deck, or contract as one clean link and see every open, free, with nothing for the viewer to install or sign up for.
ComparisonRead itSend a proposal clients will open
proposal.pdf Live/p/proposal4 min read
Send a proposal your client will actually open (and know when they do)
Stop attaching PDFs and hoping. Turn your next proposal into a tracked link and see the moment your client opens it, so you can follow up at exactly the right time.
AnalyticsRead itSend a pitch deck, see who opens
pitch.pdf Live/p/pitch5 min read
How to send a pitch deck and see exactly when investors open it
Email a deck as a PDF and you're guessing whether anyone read it. Send it as one clean link instead and you can watch opens, unique viewers, and where they came from, no DocSend subscription, and investors never have to make an account.
AnalyticsRead itKnow when a client opens an invoice
invoice.pdf Live/p/invoice4 min read
Know the moment your client opens your invoice
Stop guessing whether your invoice was seen. Send it as a trackable link and know the exact moment the client opens it, so you can follow up with confidence, not awkwardness.
AnalyticsRead itShare an AI-built website as a link
site.zip Live/p/site4 min read
Share a website you built with AI as a live link
You used ChatGPT, Claude, v0 or Lovable and got a ZIP, now what? Drop it in and get a live HTTPS link in seconds. No deploy config, no hosting account, no command line.
HostingRead itWhich way to send a file?
file.pdf Live/p/send4 min read
Which way should you send this file? A 30-second decision guide
Album link, view-only, password, expiry, tracked, or just a plain link? One flowchart that picks the right way to send any file, read top to bottom, the first row that matches wins.
ComparisonRead itShare a Canva design as a link
menu-design.pdf Live/p/summer-menu7 min read
How to share a Canva design as a link (that opens for anyone)
A Canva share link keeps changing as you edit, opens inside Canva with a sign-up prompt around your work, and tells you nothing about who looked. Here's how to export the design once and share it as a clean public link, with a QR code and a view count attached.
DesignRead itFix Drive 'request access' links
contract.pdf Live/p/shared8 min read
Google Drive link says “Request access”? 6 causes and the fix for each
The link works for you and walls off everyone else. Here are the six things that actually cause Google Drive's “You need access” screen, restricted sharing, domain policy, the wrong signed-in account, moved files, resource keys and download quotas, with the fix for each, and the point at which a public link is the faster answer.
TroubleshootingRead itSend a file too big for WhatsApp
clip.mp4 Live/p/clip7 min read
How to send a file that's too big for WhatsApp
WhatsApp has two size limits, not one: media sent through the photo picker is recompressed and capped around 16 MB, while the same file attached as a Document goes up to 2 GB. Here's how to send big files without the blur, and what to do above 2 GB.
MessagingRead itSend a large PDF, no limits
q3-report.pdf Live/p/report6 min read
How to send a large PDF that's too big for email
Gmail and Outlook bounce attachments over 25 MB, and a scanned contract can be 40-80 MB. Here are six ways to send a large PDF that actually work, including why zipping it barely helps, and the one nobody has to download.
GuideRead itSend files without uploading them
footage.mov Live/p/direct6 min read
How to send a file without uploading it anywhere
Sending a file without uploading it is possible: a peer-to-peer transfer moves the bytes browser to browser, device to device, with no server copy, no size cap, and no account. Here is how it works and when to use it.
TransferRead itWeTransfer alternatives, compared
delivery.zip Live/p/transfer9 min read
8 WeTransfer alternatives compared (2026): limits, expiry and the catch in each
WeTransfer's free plan now caps you at 3 GB, ten sends a month, and a link that dies in three days. Here are eight alternatives compared side by side, free size, how long the link actually lives, whether the recipient needs an account, and the catch nobody puts on the pricing page.
ComparisonRead itWeTransfer vs Drive vs Dropbox
final-cut.mp4 Live/p/send8 min read
WeTransfer vs Google Drive vs Dropbox: which should you actually send with?
They look like the same thing and they are not: one is a countdown, one is a permissions system, one is a subscription with a transfer bolted on. Here is how each one breaks, a head-to-head table, and a two-question test for picking the right one.
ComparisonRead itTurn a PDF into a link
proposal.pdf Live/p/proposal5 min read
How to turn a PDF into a link (step by step, with screenshots)
Stop attaching PDFs that bounce or get clipped. Here is the whole flow in Link in Seconds, screenshot by screenshot: drop your PDF, name the link, share one clean URL that opens in any browser, and see when it gets viewed.
How-toRead itTurn a video into a link
clip.mp4 Live/p/clip5 min read
How to turn a video into a link that plays in the browser
Your video is too big to email and you do not want it lost on YouTube. Here is how to turn any video into one link that streams in the browser, step by step with screenshots, so anyone can press play without downloading a thing.
How-toRead itFree file-hosting sites, compared
catalogue.pdf Live/p/hosted9 min read
Free file hosting compared (2026): 8 ways to put a file online and get a link
Uploading a file for free is easy. Having that same link still work a year later is the hard part. We compared eight free file hosts on storage, link permanence, direct-embed support, and what quietly deletes your file, so you can pick one before you print the QR code.
ComparisonRead itKeep a link alive for good
portfolio.pdf Live/p/keep6 min read
How to keep a link or album online forever, without subscribing
Rather than a monthly subscription, you can buy a single one-time keepalive for one link or album, $8.99 for a year or $15.99 for lifetime, each with its own raised storage cap. Here's when that is the cheaper answer and how it works.
LinksRead itSend an assignment as one link
assignment.zip Live/p/assignment6 min read
How to send an assignment or 100 files as a single link
Emailing a dozen files, attaching a zip nobody wants to unzip, or fighting Google Drive permissions, there's a cleaner way. Bundle any set of files, a coursework submission, a project handoff, a design pack, into one link anyone opens in the browser.
BucketsRead itShare wedding photos as an album
wedding.jpg Live/p/wedding6 min read
How to share wedding and event photos as one beautiful album link
Skip the zipped download and the Drive permission wall. Upload your wedding or event photos and share a single gallery link guests can open on any phone, no app or account needed, full resolution, one tap.
PhotosRead itHost a website from a ZIP, free
site.zip Live/p/site7 min read
How to host a static website from a ZIP, with a subdomain and custom domain
Zip your HTML/CSS/JS (or your framework's dist folder), upload it, and your site goes live at a clean subdomain with automatic SSL. No server, no build pipeline, no DNS wizard, and you can connect your own domain. Website hosting comes with Pro.
HostingRead itHost a static website from a ZIP
site.zip Live/p/site7 min read
How to host a static website from a ZIP (no server, no build pipeline)
You built a static site and just need it online. Here's how to turn a ZIP of your HTML/CSS/JS, or your framework's dist folder, into a live, multi-page website at a clean URL, on your own domain with SSL.
HostingRead itDeploy a React or Vite build
dist.zip Live/p/app7 min read
How to deploy a React or Vite build the easy way
You ran npm run build and got a dist folder. Here's the shortest path from that folder to a live URL, with hashed assets cached correctly and client-side routing that resolves, without CI, config, or a deploy command.
HostingRead itTurn a screenshot into a link
screenshot.png Live/p/screenshot5 min read
How to share a screenshot as a link
Dragging a screenshot into every Slack thread, Jira ticket, and email gets old fast. Here's how to turn any screenshot into one clean link you can paste anywhere, full quality, opens in the browser, no account for the person viewing it.
ImagesRead itShare your resume as a link
resume.pdf Live/p/resume6 min read
How to share your resume as a link (and see when it's opened)
Attaching resume.pdf to every application means bounced files, version confusion, and no idea if anyone opened it. Here's how to share your resume as one clean link you can track, and update without re-sending.
DocumentsRead itSend photos without losing quality
photos.jpg Live/p/photos6 min read
How to send a batch of photos without losing quality
WhatsApp and email quietly compress your photos into mush. Here's how to send a whole batch of images at full resolution as one clean link anyone opens in a browser, no app, no zip, no quality loss.
PhotosRead itShare multiple PDFs as one link
invoices.pdf Live/p/docs6 min read
How to share multiple PDFs as one link (without zipping or merging)
Sending five PDFs shouldn't mean five attachments, a merged mega-file, or a Drive folder with a permission wall. Here's how to bundle a set of documents into one link people just open in the browser.
DocumentsRead itShare files securely by link
contract.pdf Live/p/secure7 min read
How to share files securely by link, and what “secure” really means
Password, view-only, expiry, one-time links: a plain-English guide to sharing a file by link safely, plus the honest limits of what a link can and can't protect.
SecurityRead itShare a photo album in one link
album.jpg Live/p/album6 min read
Share a whole photo album with one link (free, no app)
Ten photos from the wedding shouldn't mean ten attachments or a Drive folder nobody can open. Here's how to turn a set of photos into one clean album link anyone opens on any phone, no app, no sign-up.
PhotosRead itSend a file that self-destructs
secret.pdf Live/p/once6 min read
How to send a file that self-destructs after it's opened
Sometimes a link should open once and then be gone. Here's how to send a self-destructing file link with a view limit and expiry, and the honest truth about what “disappears” really means online.
SecurityRead itKnow if someone opened your PDF
proposal.pdf Live/p/proposal8 min read
How to know if someone opened your PDF (5 honest methods)
A PDF attachment can't tell you it was read, no read receipts, no phone-home. Here are the 5 real ways to track whether your proposal, resume, or contract was opened: get an email the moment it's viewed, capture who opened it, and watermark against leaks, from free to enterprise.
AnalyticsRead itShare a whole folder as one link
project.zip Live/p/files6 min read
How to share a folder of files with one link (without Google Drive)
Sending 10 files usually means a zip, a Drive folder with a permission wall, or ten separate attachments. Here's how to bundle any set of files into one clean link people just open in the browser.
BucketsRead itShare a file without signing up
file.pdf Live/p/file5 min read
How to share a file online without signing up
Turn any file into a shareable link with no sign-up form, no password, no card, just one Google tap, and no account at all for the people you send it to.
SharingRead itPassword-protect a file you share
private.pdf Live/p/private5 min read
How to password-protect a file you share by link
A public link is convenient until the wrong person opens it. Here's how to put a password on a file you share online, and the honest limits of what a link password can and can't do.
SecurityRead itMake share links that never expire
portfolio.pdf Live/p/forever6 min read
How to share a file link that never expires (free)
WeTransfer dies in 3 days, Drive links get revoked, and 'can you resend that?' never ends. Here's why share links expire and how to send a file link that stays live for good.
LinksRead itTurn a PDF into a QR code
menu.pdf Live/p/menu5 min read
How to turn a PDF into a QR code (menus, flyers, resumes)
Print a QR code that opens your PDF on any phone, no app, no download. The simple way to make a PDF QR code for a menu, flyer, event handout, or resume.
QR codesRead itShare a view-only PDF, no download
report.pdf Live/p/view-only5 min read
How to share a PDF people can view but not download
Sometimes you want someone to read a document, not keep a copy. Here's how to share a view-only PDF link, and the honest truth about what view-only can and can't stop.
DocumentsRead itSend a video too big for email
recording.mp4 Live/p/video7 min read
How to send a video that's too big for email (6 real ways)
Gmail and Outlook cap attachments at 25 MB, and almost every real video is bigger. Here are the 6 ways that actually work, from compression to cloud drives to a link that plays in the browser.
VideoRead itPDF attachment vs. a link
document.pdf Live/p/document5 min read
PDF attachment vs. link: which should you send?
Attachments bounce, get clipped, and go silent after you hit send. Here's when a trackable link beats an attachment, and when an attachment is still the right call.
DocumentsRead itTurn an image into a link
photo.jpg Live/p/photo6 min read
How to turn an image into a link (3 ways, 2026 guide)
Upload a picture and get a URL you can paste anywhere. The complete guide to making an image into a link, with an image host, cloud drive, or a trackable link tool.
ImagesRead it
Turn any file into a link in seconds
Upload a PDF, video, deck or spreadsheet and get a link that opens in any browser. Add a password, set an expiry date, and see who viewed it.
Sign up free