PDF use cases — guides for every scenario
Each guide is written for a specific task — with real attachment limits, ATS quirks, tax form caps, and the small details that actually matter. Skim the category, find your scenario, get it done.
Compress PDF
Compress PDF for Email
Email attachment limits are the #1 reason PDFs get bounced. Gmail caps attachments at 25 MB, Outlook.com at 20 MB, Yahoo Mail at 25 MB, and most corporate Exchange servers cap at 10 MB or less. If your PDF is over the limit, you have two choices: compress it or upload it to a cloud share. Compressing is faster, keeps the email self-contained, and usually preserves enough quality for everyday documents.
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Compress PDF for Upload
Government forms and job portals are notorious for tight upload limits — often half what email allows. USCIS caps document uploads at 6 MB. Most ATS (applicant tracking systems) cap resumes at 5 MB. Visa application portals frequently cap at 2 MB per document. If your PDF exceeds the cap, the form rejects the upload silently or with a useless error like 'file format not supported.' This page is for getting under those caps fast.
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Reduce PDF Size Without Losing Quality
There's an art to PDF compression: shrink as much as possible without making text fuzzy or photos pixelated. Aggressive 'compress everything' tools strip too much and produce visually compromised files. Sensible compression — what we do by default — preserves text rendering, downsamples photos to 150 DPI (fine for screen and standard printing), and strips embedded fonts and metadata that don't change how the PDF looks.
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Merge PDF
Merge PDF for Resume
Most job applications expect a single PDF, not a folder of separate documents. Combining your resume, cover letter, and references (or portfolio samples) into one cleanly merged PDF makes you look organized and ensures the recruiter sees everything in the right order. Done badly, it produces a Frankenstein file with mismatched margins and font sizes. Done well, it's a one-page-resume + one-page-cover-letter + supporting-docs sequence that an ATS can still parse.
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Merge PDF for Portfolio
A portfolio PDF is your highlight reel — usually 8–15 pages of best work, exported individually from InDesign, Figma, or Photoshop and then combined. The combine step is where most people lose either quality (bad merger compresses images) or order (alphabetical filenames produce a random sequence). Our merge tool keeps original image quality and lets you drag pages into the order you want.
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Merge PDF for Loan Application
Loan applications expect a packet — pay stubs, W-2s, tax returns, bank statements, government ID, sometimes a letter of explanation. Lenders almost always want this as a single PDF, not 12 separate attachments. Merging in the right order matters: lender systems often parse the first few pages for borrower info, so the cover letter and ID go first, financial documents next, supporting docs last. Compress after merging if the file's over 10 MB.
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Sign PDF
Sign an NDA Online
NDAs are the most-signed business document in the world — every contractor, freelancer, and prospective employee signs at least one. The good news: you don't need a notary, a printer, or DocuSign to sign one. A typed or drawn electronic signature is legally binding under the U.S. ESIGN Act and EU eIDAS for standard NDAs. Drop the PDF here, sign in your browser, and email it back in under a minute.
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Sign a PDF on iPhone
iOS Markup (the built-in signature feature in Mail and Files) is fine for quick personal stuff but limited if you need to position the signature precisely, sign a multi-page contract, or share the signed PDF in a specific way. Our browser-based signer works in Safari on iPhone, lets you draw with your finger on the canvas, and outputs a clean PDF ready to email or upload.
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Sign a PDF on Mac
macOS Preview has built-in PDF signing — it's fine for one-page personal stuff but it nags you to use Continuity Camera, sometimes saves signatures in places you don't want, and has limited control over signature placement. Our browser-based signer works in Safari, Chrome, or Firefox on any Mac, lets you draw with the trackpad or upload a saved signature image, and outputs a clean PDF without macOS-specific metadata.
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Sign a PDF on Android
Most Android PDF apps want a paid subscription, push ads, or require an account just to sign. Our browser-based signer works in Chrome on any Android phone or tablet, draws with your finger, and outputs a clean PDF — no install, no account, no in-app purchase modal. Open the page, upload, sign, download.
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Send for signature
Send an NDA for Signature
Sending an NDA for the other party to sign is a daily task at most companies that work with freelancers, contractors, or prospective hires. DocuSign charges $15/user/month for this. We do it free up to 10 envelopes per month, with the same audit trail and zero account requirement for recipients. Drop your NDA, add the counterparty's name and email, drag a signature field, hit send. They get a private link, sign in their browser, and you get the signed PDF emailed back.
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Send a Contract for Signature
Service agreements, SOWs, and master service contracts often have two or more parties — client, vendor, sometimes a guarantor or third party. Sending the contract for signature shouldn't require a $50/month per-user DocuSign Business seat. Our send-for-signature handles up to 10 signers per envelope, gives each one a private link, and emails the fully-executed PDF to everyone when the last signature is in.
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Send an Offer Letter for Signature
Sending an offer letter is the most exciting moment in hiring — and you don't want it stuck in a printer queue or buried in a complex DocuSign workflow. Drop the offer letter, add the candidate, drag a signature field, send. They get a polished signing experience, you get the signed PDF in minutes, and HR has a clean audit trail with view and sign timestamps.
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Send a Rental Agreement for Signature
Sending a rental agreement to a new tenant should not require driving to a printer, paying for postage, or buying a $30/month DocuSign subscription. Drop the lease PDF, add the tenant(s) and yourself, drag signature fields, send. Tenants sign in their browser (no account needed), the fully-signed lease lands in everyone's inbox with an audit trail. Free up to 10 signatures per month.
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Send a Waiver for Signature
Liability waivers are the small business owner's best friend — they protect gyms, climbing walls, sports clubs, dance studios, tour operators, and event organizers from frivolous lawsuits. The hard part isn't writing the waiver; it's getting it signed before a participant walks in the door. Send the waiver via email, they sign in their browser, signed PDF lands in your inbox before they show up. No paper, no clipboard, no scanning.
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PDF to Word
PDF to Word Without Losing Formatting
The dream conversion: PDF in, perfectly editable Word doc out, fonts intact, tables aligned, no ASCII salad. Reality is messier — some PDFs were never editable Word in the first place (they're scans, or they were generated from InDesign), and even the cleanest PDFs require layout judgment to convert. Our converter does the best-possible round-trip: text stays as text, paragraphs stay as paragraphs, tables stay as tables when possible, and fonts substitute to the closest available match.
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Convert PDF Resume to Word
You have a PDF resume that you want to update — maybe add a new job, tweak a bullet, or tailor for a specific role. Editing PDF directly is awkward; round-tripping to Word is the obvious move. The trick is keeping the layout intact: bullets aligned, headers bold, contact info on top. Our PDF-to-Word converter is tuned for resume layouts.
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Edit PDF
Fill Out a PDF Form Online
PDF forms come in two flavors: 'fillable' (the form has clickable text fields built in) and 'flat' (it's a printed-style form with no interactive fields, even though it's a PDF). Both can be filled in your browser. For fillable forms, click each field and type. For flat forms, drop text and signature fields wherever you need them. Either way, you get an editable, professional-looking output without printing, scanning, or installing anything.
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Redact a PDF
Redacting a PDF means permanently removing sensitive information — not just covering it with a black rectangle that anyone can move out of the way in Acrobat. Real redaction strips the underlying text and the visible glyphs, so even copy-paste, search, and OCR-on-the-redacted-file can't recover the hidden data. This is what you need before sharing contracts, court filings, financial records, or anything covered by HIPAA, GDPR, or attorney-client privilege.
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Add Page Numbers to a PDF Online
Page numbers seem trivial until you need them on a 60-page report and you're trying to do it in Word. Print PDF, scan, give up. Adding page numbers to an existing PDF takes 10 seconds in our editor — pick a position (bottom-center is conventional), pick a format (1, 2, 3 or Page 1 of 60), pick a starting number, done.
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Split PDF
Extract Pages from a PDF
Extracting pages is useful when you only need a slice of a longer PDF — sending pages 5-10 of a 100-page contract for review, pulling just your tax form from a packet of statements, or grabbing the executive summary from a quarterly report. Drop the PDF, pick the pages, get a clean new PDF that contains only what you needed.
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Remove Pages from a PDF
Sometimes you don't want to extract a slice — you want to keep the whole PDF minus a few pages. Maybe page 3 has a typo and you have a corrected replacement. Maybe you scanned a 50-page document and the cover page came out blank. Removing pages is one click per page; the rest stays exactly as it was.
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