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Sign PDF

Stamp your own mark on a page. This is self-sign, not a request for others.

Browser-first · upload only when a format needs it

Stamp your own mark on a page. This is self-sign, not a request for others.

Opens PDF

or drop files and folders hereUp to 500 MB per file on the free plan · older formats use the server encoderFolders are welcome

How it works

  1. 01

    Choose a file for Sign PDF. It accepts PDF. Most files stay in this tab.

  2. 02

    Set the options on the workbench — preview, crop or timeline when this tool has one — then press Run.

  3. 03

    Download the result. It is also saved in your tray so the next tool can pick it up without another upload.

About this tool

Draw on the pad, type a name, or upload a PNG. Drag a box on the page, then Run. The mark is flattened into the PDF in this tab. We do not email the file to anyone else to sign.

Questions

What can I open in Sign PDF?
Sign PDF accepts PDF. Older video containers such as AVI, WMV, FLV, MPEG and 3GP are decoded by the server encoder.
Does Sign PDF upload my file?
Most MP4, WebM, images and PDF stay in this tab. Instagram/TikTok crops, DVD, GIF, iPhone presets, stabilize, hard containers (AVI, WMV, HEVC) and a failed local encode go to the server encoder. The file is processed and discarded — we do not keep a copy.
How large can the file be?
Free: 500 MB and 8 exports a day. Plus (waitlist) raises the daily cap. A pasted public file URL is also accepted.

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