FileMuse

Sign PDF Online

Place your signature with a full-page preview. Move, resize and review every mark before exporting.

Document workspaceNo PDF open
Open the document you want to mark

Your signature and text stay editable until you export a copy.

Files stay in this browser session. Nothing is uploaded. Closing or clearing the tool removes the working document.

Draw your signature

Use a mouse, pen or finger. Your drawing stays editable until you choose Use signature.

Nothing is added to the PDF until you use Add signature to page.

Runs entirely in your browser. Nothing you enter is uploaded.

How to use the Sign PDF

  1. Open a PDF and type or draw a signature.
  2. Add a signature, date or text to the current page.
  3. Drag a mark or its resize handles, or enter its percentage position, width and height. Use the mark list to review other pages.
  4. Prepare the marked PDF, then download and review the exported copy.

Make the placement deliberate

New marks appear in the middle of the selected page. Drag to position them, use arrow keys for small movements or enter left, top, width and height percentages. Drag the side or corner handles to stretch a mark freely. Arrow keys on a focused handle resize that edge. Selecting a mark never deletes it: removal is an explicit action, with Undo available.

Visible signatures and PDF copies

The tool places an image of your signature or text onto the page content. It does not create a cryptographic certificate, verify anyone’s identity or track recipient consent. Ask the recipient what signing method they require. Your original PDF remains unchanged.

Supported documents

For predictable browser memory use, each file is limited to 40 MB and 200 pages. Merge supports up to 20 files, 80 MB combined and 300 assembled pages. Encrypted PDFs and interactive forms are not supported; use an unlocked, flattened copy. The tools copy page content rather than screenshotting it. Bookmarks, interactive form behavior and existing digital signature validation are not preserved.

Frequently asked questions

Can I move a signature after adding it?
Yes. Select the mark and drag it, use the arrow keys or change the position, width and height fields before export. Side and corner handles resize independently.
Is my signature stored?
No. Drawings and marks remain in this browser tab’s memory. Clearing the document removes its marks; closing the tab removes the working session.

Related tools

Merge PDFSplit PDFCompress PDF