Remove Signatures & Make PDFs Editable
Instantly strip digital signatures (PAdES, CAdES, DocMDP), AcroForm locks, and PDF/A restrictions. 100% private in your browser.
Drop your PDF files here
or click to browse from your device
Why Choose PDFUnsign?
The fastest, most secure way to regain full edit access to your signed documents.
Total Privacy Guarantee
Unlike traditional online PDF editors, PDFUnsign processes your document entirely in your browser's memory using JavaScript. Sensitive contracts, bank statements, and legal files never leave your device.
Zero Quality Loss (Vector)
No rasterization or image flattening. Your selectable text, embedded fonts, tables, and native vector graphics are preserved with 100% accuracy.
Universal Compatibility
Open and edit your unlocked PDF in Adobe Acrobat, Nitro, Foxit, Microsoft Word, or LibreOffice without read-only warnings or restricted permissions.
How to unlock a signed PDF in 3 simple steps
1. Select your document
Drag and drop your locked or digitally signed PDF into the upload area.
2. Client-side algorithm
Our JavaScript engine removes /Sig dictionaries, /SigFlags, resets AcroForm permissions, and neutralizes PDF/A XMP metadata.
3. Instant download
Download your clean PDF immediately, ready to be edited, printed, merged, or signed anew without restrictions.
PDFUnsign vs Traditional Cloud Converters
| Criteria | PDFUnsign (Client-Side) | Server-Based Converters |
|---|---|---|
| Privacy & GDPR | ✓ 100% Guaranteed (No upload) | ✕ High risk (Stored on 3rd-party servers) |
| Vector Quality | ✓ Pristine (No rasterization) | ✕ Often compressed or flattened |
| Processing Speed | ✓ Instant (< 1 second) | ✕ Depends on upload & queue speeds |
| Size Limits & Pricing | ✓ Unlimited & Free | ✕ Subscription walls or file caps |
Frequently Asked Questions
Everything you need to know about unlocking and un-signing PDFs.
Yes, provided you are the rightful owner or author of the document and need to modify, amend, or update it. Unlocking simply removes cryptographic locks so the document can be edited, just as you would update a draft before re-approving.
No, never. The entire application executes locally in your web browser using modern JavaScript. Zero bytes are uploaded to the internet or stored on external servers.
When a PDF is signed or saved with PDF/A conformance, readers like Adobe Acrobat lock down the editing toolbars with /DocMDP and /Perms flags, alongside strict XMP metadata. PDFUnsign purges these restrictions so editing works seamlessly.
Yes, completely. PDFUnsign never turns your PDF into a scanned picture. All font structures, vector curves, text flows, and bookmarks remain intact.