PDFixer for Windows: insert a clean handwritten signature into any PDF without uploading the document. Download from the Microsoft Store

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

PDF SIGNATURE GUIDE FOR WINDOWS

Insert a signature in a PDF — without the white box

Most guides tell you to draw, type or upload a signature. They skip the hardest part: a phone photo of your handwritten signature includes the paper background, and the result looks like a pasted rectangle.

PDFixer removes that background first. You get a clean transparent signature image that sits directly on the PDF page — the signature line underneath stays visible, the document looks professionally signed.

Everything runs locally on your Windows PC. No upload, no account, no subscription.

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 — insert a clean signature in a PDF on Windows

Why most signature inserts look unprofessional

Every competing tool — PDF24, Smallpdf, Sejda, PDFgear, iLovePDF — offers three options: type a name, draw with a mouse, or upload an image. The upload option sounds useful until you try it with a real phone photo of your handwritten signature.

A phone camera captures both the ink and the paper. The result is a white or grey rectangle pasted onto your PDF. The signature line underneath it disappears. The document looks like it was signed with a sticky note on top.

PDFixer removes the paper background before the signature touches the PDF. The handwriting sits directly on the page, the signature line remains visible, and the result looks exactly like a real handwritten signature on the document.

Before and after background removal

Phone photo of handwritten signature with white paper background

Before
White paper background included

Transparent signature PNG — background removed, ready to insert in PDF

After
Clean transparent signature, ready to insert

How to insert a signature in a PDF using PDFixer

Quick answer: open the PDF in PDFixer, click Make transparent signature, photograph your signature, send the photo to your PC, import it, remove the background, place it on the PDF page, save locally.

  1. Open your PDF in PDFixer on Windows.
  2. Click Make transparent signature in the Stamp / Signature panel.
  3. Write your signature clearly on white paper — blue or black ink works best.
  4. Take a sharp photo and send it to your PC via email or WhatsApp.
  5. Import the photo into PDFixer. Adjust the background removal slider until only the handwriting remains.
  6. Choose ink colour if needed, then save the transparent signature as a reusable preset.
  7. Place the signature on the correct PDF page. Resize and align it with the signature line.
  8. Save the signed PDF locally. Nothing is uploaded.

The important difference is step 5. Most tutorials skip it entirely. Without background removal, the signature insert always carries the paper with it.

Typed signature

Type your name in a script font. Fast for low-stakes approvals where appearance is not critical. Does not look like a real handwritten signature.

Drawn signature

Draw with mouse or touchpad. Works for quick one-off signing. Hard to reproduce consistently and rarely looks natural.

Cleaned photo signature ✓

Photograph a real handwritten signature, remove the paper background in PDFixer, save as a transparent preset. Looks exactly like a real handwritten signature. Reusable on every future PDF.

PDFixer versus a standard online PDF signer

Online signing tools are convenient for low-stakes documents. They are not the right choice when the document is confidential or when you need a genuinely clean handwritten signature — not a typed or mouse-drawn alternative.

Need Standard online tool PDFixer for Windows
Insert signature quickly Usually strong ✓ Strong, local on Windows
Remove paper background from photo Often missing or hidden ✓ Core workflow — one click
Reuse same signature Often lost after session ✓ Saved as permanent preset
Confidential documents File uploaded to server ✓ File never leaves your PC
No subscription Often freemium with limits ✓ One payment, 3-year licence: €49
Works without internet No — requires upload ✓ Fully offline on Windows

Contracts and offers

Insert your signature on the correct page and line. The document stays on your Windows PC. No cloud storage, no third-party servers.

Forms and approvals

Add a signature or approval mark to HR documents, invoices and administrative paperwork without printing a single page.

Repeat signing workflows

Save your transparent signature as a preset. Open the next document, place in two clicks, save. The whole process takes under thirty seconds.

Signature image versus electronic signature

An electronic signature platform — DocuSign, Adobe Sign, Foxit eSign — uses cryptographic certificates, identity verification and audit trails. Those tools are designed for legally binding workflows where the signing party must be verifiably identified.

PDFixer does something different and more practical: it inserts a visible handwritten signature image on a PDF page. No certificate, no identity check, no account required. For most everyday signing tasks — offers, internal approvals, correspondence, forms — that is exactly what is needed and far faster than a formal e-signing workflow.

PDFixer is not a replacement for certificate-based digital signing when that is legally or contractually required.

Why local matters for signed documents

Signed documents often contain names, addresses, prices, contract terms or personal data. Uploading them to an online tool means that data reaches an external server, even temporarily.

PDFixer runs entirely on Windows. The PDF you open, the signature image you create and the signed file you save never leave your machine. That makes it the right tool for accountants, legal support staff, HR administrators and small business owners who handle sensitive documents daily.

Read the full PDFixer FAQ

Related signing tasks covered by PDFixer

FAQ — inserting a signature in a PDF

How do I insert a signature in a PDF?
Open the PDF in PDFixer on Windows. 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 the transparent signature on the correct page, align it with the signature line and save the file locally. The 14-day free trial lets you test the full workflow before buying.
Why does my inserted signature show a white box?
A phone photo captures both the ink and the paper background. If the background is not removed before inserting, the signature appears as a white or grey rectangle on the PDF. PDFixer removes the paper background so only the handwriting is visible. This is the step most online tools skip or handle poorly.
Can I insert a signature from a photo into a PDF?
Yes. Import the photo into PDFixer, use the background removal tool, save the result as a transparent PNG preset and place it on any PDF page. The preset can be reused on future documents in one click.
Does my PDF get uploaded when I insert a signature?
No. PDFixer runs entirely on Windows. Neither the PDF nor the signature image is sent to any server or cloud service. Everything stays on your own PC throughout the process.
How much does PDFixer cost?
PDFixer costs €49 excl. VAT for a one-time payment that covers a 3-year licence with all updates included. There is no subscription and no automatic renewal. A 14-day free trial is available with no credit card required. A launch discount code (PFX20) is currently active for the first 100 licences, bringing the price to €29.
Is inserting a signature image the same as an electronic signature?
No. An electronic signature uses a cryptographic certificate tied to a verified identity. PDFixer inserts a visible handwritten image on a PDF page. It is not a certified eSignature platform. For most everyday tasks — offers, forms, approvals, correspondence — a clean visible signature image is exactly what is needed.
Can I reuse the same signature on multiple PDFs?
Yes. After background removal, PDFixer saves the signature as a transparent preset in the Stamp / Signature panel. On the next document you open the preset and place it in two clicks.

Insert a clean signature in your PDF — in minutes

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

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