PDF tool
Sign PDF
Place a drawn or typed signature image onto a PDF.
Sign PDF workspace
Workspace
Sign PDF
Drop PDF, then signature image
or · PDF files only
You can add more than one.
Add the PDF first, then the signature image (transparent PNG works best).
pdf-lib reads and writes the document in your browser. Large documents may take a moment; encrypted PDFs may not open.
Your PDF result will appear here.
No page is uploaded to create it.
The guide
By the utils.sbs team · Reviewed November 2026 · How we build and review tools
Quick answer
Sign PDF is a free browser-based pdf tool. Place a drawn or typed signature image onto a PDF. It runs with pdf-lib locally, requires no account and does not upload your files. Open the page, add your input, adjust any options and download the result.
What is Sign PDF?
Sign PDF is a free browser-based pdf tool from utils.sbs. Place a drawn or typed signature image onto a PDF. It is built for quick, focused jobs: open the page, add your input, adjust the options and take the result with you. No account, install or server upload is required.
At a glance
| Category | |
|---|---|
| Input | PDF, or images for image-to-PDF operations |
| Output | A PDF, extracted text or archive, depending on the operation |
| Engine | pdf-lib |
| Processing | In your browser |
| Price | Free |
| Account | Not required |
How Sign PDF works
PDF pages are parsed and written with pdf-lib in the browser. The document stays on your device from upload to download.
How to use Sign PDF
- 1Open Sign PDF and add your input.
- 2Adjust the options: page, signature width, x position, y position.
- 3Run the tool, check the preview or result, and download the output.
When to use Sign PDF
- Organise, split or combine pages before sending a document.
- Extract text or convert a PDF for another workflow.
- Add a signature, watermark or page numbers to a document.
Inputs and options
- Page
- Use “last” or a page number
- Signature width
- Enter a numeric value in pt.
- X position
- Enter a numeric value in pt.
- Y position
- Enter a numeric value in pt.
Limitations
Scanned PDFs may not expose selectable text, and very large documents can be slow on low-memory devices.
Privacy and accuracy
Sign PDF processes its input in the browser whenever the platform API allows it. Files and values are not uploaded to a server for processing, and the tool does not require an account. For calculations, use the result as a reference and verify important decisions against the source formula or a qualified professional. Read our methodology.
FAQ
Sign PDF questions
What can I do with Sign PDF?
Place a drawn or typed signature image onto a PDF. Sign PDF is part of the PDF shelf on utils.sbs and is designed for quick, one-off tasks.
Is Sign PDF free to use?
Yes. Sign PDF is free, requires no account, and has no per-file or per-use charge.
Are my files uploaded when I use Sign PDF?
No. Sign PDF is designed to process your input locally in the browser. Files are not uploaded to a server for processing.
What formats does Sign PDF support?
It works with PDF input and produces a downloadable PDF or extracted text, depending on the operation.
Can I use Sign PDF on my phone?
Yes. Sign PDF is responsive and works in modern mobile browsers. Very large files may be limited by the device's available memory.
Keep going
Related pdf tools
- Merge PDFCombine several PDFs into one document, in your order.
- Split PDFSplit a PDF at page ranges and download a ZIP of results.
- Extract PDF PagesKeep only the pages you specify in a new PDF.
- Delete PDF PagesRemove unwanted pages without re-uploading anywhere.
- Rotate PDFRotate every page or selected pages by 90/180/270°.
- Reorder PDF PagesArrange pages in any order using a simple page list.