# Sign PDF

> Draw, type or upload a signature and place it anywhere on a PDF. Runs in your browser, so signed contracts and agreements are never uploaded.

- URL: https://farvixo.com/tools/pdf/sign-pdf
- Category: PDF Tools (https://farvixo.com/tools/pdf)
- Price: Free
- Last reviewed: 7 August 2026
- Publisher: Farvixo Technologies

## What is Sign PDF?

Sign PDF is a free browser-based PDF tool from Farvixo that lets you draw and place your signature on a PDF. It runs entirely on your own device using WebAssembly, so the document is never uploaded to a server. There is no sign-up, no watermark on the output and no cap on how many documents you process.

## Specifications

| Property | Value |
| --- | --- |
| Tool | Sign PDF — PDF Tools |
| Purpose | Draw and place your signature on a PDF |
| Input | A single file (PDF) |
| Output | PDF file (plus the chosen export format where the tool converts) |
| Processing | In your browser — files are never uploaded to a server |
| Price | Free, unlimited, no account required |
| Limitations | Bounded by your device's memory and CPU rather than a server quota; very large files may be slow on older hardware |

## How to use Sign PDF

1. **Add your PDF** — Drag your PDF into Sign PDF or click to browse. The file stays on your device — nothing is uploaded to a server.
2. **Set up the document** — Reorder, select page ranges and pick the output settings you need. Sign PDF shows a live preview so you can check the result before committing to it.
3. **Save the finished PDF** — Download the new PDF straight away. No watermark, no page limit and no sign-up — run Sign PDF as often as you need.

## Use cases

- Preparing a document for an email attachment or an upload form with a size limit
- Students and office workers who need one PDF change without buying a desktop editor
- Handling contracts, invoices or ID documents that should not be uploaded to a third-party server
- Cleaning up a scanned document before archiving or sharing it

## Tips

- Check the page count and orientation in the preview before you download — reordering afterwards means starting over.
- If a PDF refuses to open, it is usually password-protected; remove the password first, then re-run this tool.
- Very large PDFs are limited by your device memory, not by an upload cap. Splitting a 500-page file into parts is faster than processing it whole.

## Common problems

- **The PDF will not load** — The file is encrypted or was produced by a non-standard writer. Open it in a PDF reader, print it back to PDF, and try again.
- **Text comes out garbled or as boxes** — The PDF has no embedded font or no text layer at all. A scanned page needs OCR first — use PDF OCR, then re-run this tool.
- **The browser tab becomes unresponsive** — The document is larger than the available memory. Close other tabs, or split the PDF and process it in sections.

## FAQ

### Is a signature added here legally valid?

In most countries an electronic signature is legally recognised for ordinary agreements, and this produces one. It is not a cryptographic digital signature with a certificate authority behind it — some regulated contexts require that. Check what your specific document demands.

### Can anyone remove my signature afterwards?

A placed signature is an annotation and can be edited by someone determined enough. Run Flatten PDF afterwards to merge it permanently into the page, then Protect PDF if you also want to stop the file being modified.

### How do I get a clean signature image?

Draw it directly with a finger or stylus, which gives the cleanest result. If you photograph a signature on paper, use black ink on plain white under even light — a shadow across the paper is what produces the grey box people complain about.

### Is my signed contract uploaded?

No. Both the document and the signature stay in your browser. A tool that uploaded your signed contract would hold your signature and your agreement together on someone else's server.

### Can I sign several documents at once?

Save your signature once and reuse it across documents in the same session. Each document is still placed individually, because the position that suits one contract rarely suits another.

## Related tools

- [PDF Converter](https://farvixo.com/tools/pdf/pdf-converter): Convert PDF to Word, Excel, PowerPoint, Images and more — or convert any file to PDF
- [Merge PDF](https://farvixo.com/tools/pdf/merge-pdf): Merge multiple PDF files into one document — AI organize, optimize & premium merge modes
- [PDF Compressor](https://farvixo.com/tools/pdf/compress-pdf): AI-powered PDF compression — smart modes, batch queue, quality reports & 100% private
- [PDF to Word](https://farvixo.com/tools/pdf/pdf-to-word): Convert PDF to editable Word with AI layout repair, OCR, tables & Indic script support — 100% private
- [PDF to Excel](https://farvixo.com/tools/pdf/pdf-to-excel): Convert PDF tables into editable Excel spreadsheets — dates, numbers and currency stay editable
- [Image to PDF](https://farvixo.com/tools/pdf/image-to-pdf): AI-powered image to PDF — batch upload, organize, optimize & professional PDF output

---

> Machine-readable index: [llms.txt](https://farvixo.com/llms.txt) · full corpus: [llms-full.txt](https://farvixo.com/llms-full.txt) · agent skill: [skill.md](https://farvixo.com/skill.md). Any page on this site is available as Markdown by appending `.md` to its URL or sending `Accept: text/markdown`.