Sign PDF
Sign PDF documents online by drawing, typing, or uploading your signature image. Approve contracts and forms digitally without printing or scanning.
Upload your file
Start by picking a document from your computer.
Supported formats: PDF
Select files for Sign PDF
or drop files here (Max 10MB)
or drop files here (Max 10MB)
How to use Sign PDF
Upload your PDF
Create your signature
Place and save
Frequently Asked Questions
Is this a legally binding signature?
QuietPDF provides basic e-signing. For legally binding signatures, consider qualified electronic signatures.
What signature formats are supported?
You can draw your signature with a mouse or touchscreen, type your name in a signature font, or upload an image of your handwritten signature.
Is my signature image stored by the tool?
No. Your signature is embedded directly into the PDF file only. QuietPDF does not store or share your signature data.
Can I sign on mobile devices?
Yes. The signing tool works on mobile browsers. You can draw your signature directly on your phone or tablet screen.
Should I sign before or after compressing?
Sign after finalizing the document structure and immediately before delivery. Compressing or modifying pages after signing may invalidate the signature appearance.
When to use this tool
Add an electronic signature to a PDF by drawing, typing, or uploading a signature image. Keep in mind that electronic signatures are different from advanced digital signatures backed by certificates.
- A contract or agreement needs a visible approval mark before distribution.
- A form requires a signature field without printing and scanning.
- Multiple signers must add their signatures to different pages.
Tips for best results
- Confirm the document content is final before placing a signature.
- Check that signatures do not cover important text or form fields.
- Validate the signed PDF opens correctly on a different device before sharing.
Privacy and file retention
The PDF and your signature are used only to create the signed copy in this session. QuietPDF does not store signature images or signed documents as a permanent record.
Guides for Sign PDF
Go deeper on the most common use cases, delivery workflows, and failure points around this tool.
How to Sign a PDF Without Printing It
A practical workflow for reviewing, signing, and sending PDFs digitally without paper round-trips.
How to Merge Signed Pages into One Final PDF
Combine signed pages, annexes, and clean originals into one final PDF without losing order or version control.
How to Protect a PDF Before Sharing It with a Client
Use passwords, expiry, and smaller distribution copies to share PDFs more safely with clients and external recipients.
Related tools
Continue with nearby tasks using the same secure workflow.
Edit PDF
Edit PDF documents online — add text, insert images, annotate, highlight, and draw shapes directly without converting to another format.
OCR PDF
Turn scanned PDF documents into searchable, selectable text with optical character recognition (OCR) online. Extract and search text from image-based PDFs.
Page Numbers
Insert page numbers into PDF documents online. Customize position, font, format, and starting number for merged documents and reports.
Crop PDF
Crop PDF pages online to remove excess margins, white space, and unwanted borders. Adjust visible page area without re-encoding.