Sign PDF on Mac
Sign any PDF on your Mac directly in Safari or Chrome — no app to install, no account required. A fast, free alternative to the built-in Preview app for adding signatures to PDFs.
1
Upload PDF2
Create Signature3
Place & DownloadDrop your PDF here
or click to browse files
Upload a PDF to get started
SigPDF vs Mac Preview for Signing PDFs
macOS includes a built-in way to sign PDFs through the Preview app, but it has several limitations. SigPDF offers a more flexible, browser-based alternative that works in Safari, Chrome, Firefox, or any browser on your Mac.
| Feature | SigPDF | Mac Preview |
|---|---|---|
| Price | Free to use | Free (included with macOS) |
| Signature methods | Draw, type, or upload image | Trackpad, camera, or iPhone |
| Add text fields | Yes | Limited |
| Add dates & photos | Yes | No |
| Works on non-Mac devices | Yes (any browser, any OS) | macOS only |
| Privacy | Files processed in browser | Files stay on device |
| Multiple signatures per page | Yes | Yes |
When to Use Preview
- You only need a basic signature and are already working in Preview
- You prefer signing with the trackpad or using your iPhone's camera via Continuity
- You do not need to add text fields, dates, or photos
When to Use SigPDF
- You want to type your name as a signature with handwriting fonts
- You need to add text fields, date stamps, or photos alongside your signature
- You want a consistent signing experience across Mac, Windows, and mobile
- You need to upload an existing signature image (company stamp, scanned signature)
- Preview's trackpad signing feels awkward or imprecise
How to Sign a PDF on Mac with SigPDF
- Open SigPDF in Safari, Chrome, or any browser on your Mac
- Drag and drop your PDF into the editor, or click to browse
- Draw your signature with your mouse or trackpad, type your name, or upload an image
- Click on the page to place your signature and download
For a detailed comparison with step-by-step screenshots, see our complete guide to signing PDFs on Mac.