PDFixer for Windows: sign a PDF with a real handwritten signature that stays on your own PC. Download from the Microsoft Store

PDF SIGNATURE GUIDE FOR WINDOWS

How to sign a PDF —
the practical Windows guide

There are many ways to sign a PDF. Most guides cover drawing, typing and uploading. This guide shows the method that produces the most professional result: a real handwritten signature, cleaned and placed precisely on the page.

PDFixer is the Windows software that handles the step every other tool skips — removing the paper background from a signature photo so the result looks genuinely handwritten, not digitally pasted.

Download. Unzip. Go. Everything stays on your own PC.

Download from the Microsoft Store

✓ 14-day free trial · ✓ One payment, 3-year licence: €49 excl. VAT ·
✓ No subscription · ✓ No auto-renewal

4.7 ★★★★★ Made by the team behind Fabreasy · 38 reviews on Capterra · used by over 1,000 professionals · Dutch Windows software

PDFixer — how to sign a PDF on Windows with a handwritten signature

⚡ Launch discount: use code PFX20 and pay only €29 instead of €49 · Valid for the first 100 licences.

Five ways to sign a PDF — which one fits your situation

Not every signing task is the same. The right method depends on what the document is for, who will receive it, and whether it needs to look professionally signed or just completed.

Method	Best for	Main limitation
Typed signature	Quick internal approvals where appearance is not critical	Looks generic — not a real handwritten signature
Drawn signature	Touchscreens or fast one-off documents	Hard to reproduce neatly with a mouse
Uploaded image (uncleaned)	When you already have a clean transparent PNG	A phone photo keeps the paper background
Cleaned photo signature ✓	Contracts, offers, forms — any document where it must look handwritten	Needs background removal — PDFixer handles this in one step
Certified e-signature	Legally binding workflows requiring verified identity	Requires an e-signing platform — overkill for most daily tasks

How to sign a PDF with a handwritten signature — step by step

This is the workflow PDFixer is built for. It solves the problem that every other method leaves unsolved: what to do when your signature photo has a white background.

Write your signature clearly on plain white paper. Blue or black pen gives the cleanest result.
Photograph it with your phone. Good light and a steady hand matter more than camera quality.
Send the photo to your PC by email or WhatsApp.
Open your PDF in PDFixer on Windows.
In the Stamp / Signature panel, click Make transparent signature.
Import the photo and adjust the background removal slider until only the handwriting remains.
Choose ink colour if needed. Save the transparent signature as a preset for reuse on future documents.
Place the signature on the correct page. Resize and align it with the signature line.
Save the PDF locally. Nothing leaves your machine.

The step most guides skip

Every tutorial explains how to upload or draw a signature. Very few explain what happens when you photograph a real handwritten signature and try to use that photo directly.

The paper around the ink becomes part of the image. When you place it on a PDF, you get a white rectangle sitting on top of the document — the signature line underneath it disappears, and the result looks like a sticky note rather than a genuine signature.

PDFixer was designed around this specific problem. The background removal tool is not a side feature — it is the core of the workflow. You adjust a slider until only the handwriting remains, save the result as a transparent PNG preset, and every future signing takes under thirty seconds.

That is the difference between a PDF that looks signed and a PDF that looks professionally signed.

How to sign a PDF without Adobe

Adobe Acrobat is the market standard but it is expensive and it is far more product than most people need for signing. If your only requirement is to place a visible handwritten signature on a PDF and save it, Adobe Acrobat Reader’s Fill & Sign tool handles the basic case — but it does not remove the background from a signature photo, and the result often still shows the white rectangle problem.

PDFixer solves the same practical task without the Adobe account, without the subscription, and with the background removal step built in. It is Dutch Windows software with a one-time price of €49 excl. VAT for a 3-year licence including all updates.

Compare signing methods on the PDFixer sign PDF page

PDFixer versus online PDF signing tools

Online tools are fast and free for simple tasks. For documents that contain personal data, customer information or contract terms, local signing is the safer choice.

Need	Standard online tool	PDFixer for Windows
Sign with handwritten photo	Upload + white box problem	✓ Background removed — clean result
Background removal built in	Rarely or never	✓ Core feature — one slider
Save reusable signature preset	Session only	✓ Permanent preset in panel
Works offline	No — browser required	✓ Fully local on Windows
Document uploaded to server	Yes	✓ Never — stays on your PC
Price	Free with ads or freemium	✓ €49 one-time, 3-year licence

Related pages

FAQ — how to sign a PDF

How do I sign a PDF on Windows?

Open the PDF in PDFixer. Click Make transparent signature in the Stamp / Signature panel. Import a photo of your handwritten signature, remove the paper background and save as a preset. Place it on the correct page, save locally. A 14-day free trial is available.

Why does my signature look like a pasted box?

A phone photo includes the paper around the handwriting. If you upload that photo without removing the background, the signature appears as a white rectangle on the PDF. PDFixer removes the paper background so only the handwriting is visible.

Can I sign a PDF without Adobe?

Yes. PDFixer handles the practical signing workflow without Adobe. It costs €49 excl. VAT for a one-time 3-year licence with no subscription. A 14-day free trial is available from the Microsoft Store.

Can I sign a PDF without uploading it?

Yes. PDFixer runs entirely on Windows. The PDF and signature image never leave your machine.

How much does PDFixer cost?

PDFixer is €49 excl. VAT — a one-time payment for a 3-year licence including all updates. No subscription, no automatic renewal. A launch discount (code PFX20) currently brings the price to €29 for the first 100 licences.

Is a signature image legally binding?

A visible signature image is not a certified electronic signature under eIDAS or similar frameworks. PDFixer is not an e-signing platform. For most everyday tasks — offers, forms, internal approvals, correspondence — a clean visible handwritten signature is accepted and appropriate. For legally binding contracts requiring verified identity, use a certified e-signing service.

Can I reuse the same signature on multiple PDFs?

Yes. PDFixer saves the signature as a transparent preset. On the next document you open the preset in the Stamp / Signature panel and place it in two clicks.

Sign your PDF with a clean handwritten signature

Download PDFixer from the Microsoft Store. 14-day free trial. One payment, 3-year licence: €49 excl. VAT. No subscription.