Sign a document on your computer, with large text and big buttons

If you're at your computer with a PDF to sign and aren't sure what to click, this page takes you through it in large type and three plain steps. Whether it's a pension change form, a letter from the homeowners' association or a care-home agreement, you can read the small print first in the free reader, which reads it aloud, then draw your signature with the mouse or simply type your name, put it on the line and save the signed PDF. The file never leaves your computer. Trying the signer costs nothing; saving the signed PDF costs €2.99 a month.

Large text and big buttonsSign with the mouse or a typed nameYour document is never uploaded

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A signer for anyone unsure what to click: large text, big buttons and three plain steps from opening the PDF on your computer to saving it signed. Nothing is uploaded.

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Can't read the small print? Make it big first

Open the PDF in our free large-print reader: the words appear page by page in type up to 64 px, in the colours you find easiest, and your device can read them aloud. Nothing is uploaded and no account is needed.

Open the free reader

Three steps at your computer

Go at your own pace. Your document is never uploaded, and the signed copy is only made when you press the download button.

  1. 1

    Find the PDF your email saved

    When you download an attachment, the computer puts it in your Downloads folder. On Windows, open File Explorer and click Downloads on the left; on a Mac, open Finder and click Downloads in the sidebar.

  2. 2

    If you like, read it big first

    Open the same file in the free large-print reader. It shows the words one page at a time at up to 64 px and reads them aloud with the voices on your computer. Skip this if you already know what it says.

  3. 3

    Sign, date and save

    Back here, click the big box and choose the file. Draw your signature with the mouse, or type your name and pick a handwriting style. Click the line to place it, add the date and your printed name, then save. The new file's name ends in -signed.

Made for people who find screens hard work

Bigger than usual, everywhere

Every page uses a larger base size and the Atkinson Hyperlegible typeface, which was designed for readers with low vision.

A reader that talks

The free reader shows the document's words in type up to 64 px and reads them aloud with the voices on your device.

A mouse is all you need

No pen, tablet or touchscreen required. Draw your name with the mouse, or switch to Type and choose one of four handwriting styles: Elegant, Formal, Casual or Flowing.

Mistakes are easy to undo

Undo and Redo take back a step, and every placed item has its own Remove button. Nothing touches the original file, so you can start again as often as you like.

Dates and forms included

Add today's date next to your signature, type your name or address, and fill in form boxes if the PDF has them.

Private by design

The PDF is opened and signed in your browser. It is not sent to BigSignPDF, so there is nothing of yours on a server to lose.

Updated 27 October 2026 · Written by Joe Farwick, who runs this site

Why this site starts with reading, not signing

Your signature says you have read and agree to what is written above it. That is hard to honor when the document is set in 9-point type across two columns. The Royal National Institute of Blind People puts regular print at about 10 to 12 point and large print at 16 to 18 point, and a lot of contracts and official letters use regular print or smaller.

So the first tool here is a free large-print reader. It takes the text out of the PDF, shows it one page at a time at a size you choose, and reads it aloud at the speed you set. Once you understand the document, come back to this page and sign the original. If the reader finds no text at all, the PDF is a scan; our guide on PDFs that won't read aloud explains what to do instead.

The everyday paperwork it's made for

Most documents people are asked to sign at home are everyday paperwork: a form to change how a pension or retirement plan pays out, a letter from the homeowners' association that needs your approval, an agreement with a care home or an assisted-living community, a change to an insurance policy or a utility account, or a membership or volunteer form for a club. The care-home or assisted-living agreement is different from the rest of that list: it is a full contract, which can cover fees, the reasons a resident may be asked to leave and how disputes are handled. Read all of it first (the large-print reader helps) and ask the home about any clause you don't understand before you sign.

Papers like these usually ask for three things: your signature, the date and your name in capitals. The signer handles all three, and if the PDF has boxes to fill in, it lists them so you can type your answers before you sign. Some forms need more than a signature on screen, though. If you are married and choose a pension option that gives up survivor benefits for your spouse, for example, many plans need your spouse's written consent, witnessed by a plan representative or a notary public. The form's own instructions should say so; if they don't, ask the sender before you sign.

What to have ready at the computer

You need the PDF saved on the computer you are using, not just open inside your email. In the email, find the attachment, whose name ends in .pdf, and click its download button or arrow; your browser then puts a copy in Downloads. On Windows, File Explorer is usually the yellow folder icon on the taskbar. On a Mac, Finder is the blue smiling face at the start of the Dock. If the file isn't in Downloads, our guide to finding a downloaded PDF lists the other places it can end up.

Allow ten quiet minutes the first time. A plugged-in mouse is easier than a laptop touchpad for drawing a signature, and if neither feels steady, a typed signature works just as well. If the sender asked for a date or your printed name next to the signature, have those in mind too.

Signing, one screen at a time

Step one shows a large box. Click it, or drag the file onto it, and the first page of your document appears. Step two asks for your signature: choose Draw to write it with the mouse, or Type to write your name and pick one of the handwriting styles. The signature is remembered in this browser, so next time you can simply press Use.

Step three is placing it. Click on the page where the signature should go; it appears there and can be dragged to the exact line and resized. Use Add Date for the date, Add Text for your printed name, and Add Initials if every page needs them. "Place on every page" copies the last initials or signature you placed to the same spot on all the other pages. When it looks right, press "Confirm & Download Signed PDF" and send the file ending in -signed back the same way the original came.

When to pause before you sign

Take a moment if a document arrives unexpectedly, pushes you to sign today, or asks for bank or card details along the way. Call the organization on a number you already have, not one printed in the email. Our checklist for checking a document is genuine covers the usual warning signs, and if you help an older relative with paperwork, the guide for helping a parent sign explains how to do it well by phone or in person.

Sources (checked 24 October 2026)

Questions people ask before they start

I can't draw with a mouse. What now?
Choose Type instead of Draw, write your name and pick the handwriting style you like. A typed signature goes on the line just like a drawn one. Whichever you make is remembered in this browser, so next time it is waiting under Saved Signatures and you only press Use.
The writing is too small to read.
Every page here, the signer included, uses an 18 px base text size instead of the usual 16 px. For the document itself, open it in the free reader, which shows the words at up to 64 px and can read them aloud. To make this whole page bigger, signer included, use your browser's own zoom: hold Ctrl (Command on a Mac) and press the plus key; Ctrl or Command and 0 sets it back. Zoom changes only what you see, not the signed PDF.
Where did the attachment go?
Nearly always into the Downloads folder: File Explorer on Windows, Finder on a Mac, then Downloads on the left. In Chrome or Edge on Windows, Ctrl+J lists recent downloads too. If it still won't turn up, the guide to finding a downloaded PDF in the list below goes through the other places.
It's a Word document, not a PDF.
The signer opens PDFs only. Word can usually save a copy as a PDF (look under File, then Save As or Export); sign that copy here and return the PDF, unless the sender asked for the Word file back.
How do I send it back?
Open the original email and press Reply, so it reaches the right person. Click the paperclip or Attach button, go to Downloads and choose the file whose name ends in -signed. A short line such as "Signed copy attached" is enough. Then look in Sent to make sure the file went with it.
Do I have to install anything or make an account?
No. The signer and the reader run in the browser you already use, such as Chrome, Edge, Safari or Firefox. There is no app and no sign-up to try it. You give an email address only when you buy a plan, so we can send your sign-in link, or if you choose to have a reminder emailed.
Will they accept a signature added this way?
That depends on the sender and the document. What you create here is a simple electronic signature: an image of your signature added to the PDF. In the US, the ESIGN Act rules out treating a signature or contract as invalid merely because it is electronic; in the EU, and in the UK through its own retained version, Article 25 of the eIDAS Regulation stops courts from rejecting an electronic signature as evidence simply because it is electronic. Neither rule covers everything: ESIGN leaves out wills, adoption and divorce papers, court filings, and notices such as eviction or foreclosure, and some organizations insist on a witness, a notary, wet ink or their own signing system. When in doubt, ask the sender which kind of signature they need.
How can I tell if the email is genuine?
Look at the sender's full email address, not only the name shown, and at the attachment's name: a real PDF ends in .pdf, while one ending in .html or .zip is a warning sign. If anything feels off, phone the organization on a number from a letter or card you already have. Our checklist for checking a document is genuine, in the guides below, covers more signs.
What do I pay, and for what?
The large-print reader is free with no account. The signer is free to try: you can open your PDF, make your signature and place it. Saving the signed PDF is what the plan is for: €2.99 per month or €24.99 per year. Cancel whenever you like; access continues for the rest of the month or year already paid.

Guides for reading and signing

Who runs BigSignPDF and why

Behind BigSignPDF is one person: Joe Farwick, a self-employed developer based in Hamm, Germany. Besides this site he builds several other small PDF tools, each for a single task. His postal address and phone number are listed in the imprint.

This one exists because the usual signing sites are built for people who sign documents every day: small gray text, crowded toolbars and an account before anything happens. Here everything is larger, each screen asks for one decision, and there is a free reader for the part that comes before signing, which is understanding the document.

Both tools run in your browser. The PDF is read and signed on your device and is never uploaded; payments for a plan are handled by Stripe. Questions or problems? Write to the support address at the bottom of every page and you will get an answer from the person who built the site.

Ready to sign it on your computer?

Choose the PDF in the box above. Large buttons, three steps, and the file never leaves your computer.

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