One-Click Gmail PDF Signer

Sign PDF attachments in Gmail — no downloads, no third-party uploads. Draw or upload your signature, place it, and send in seconds.

How it works: 1. Open any email with a PDF attachment in Gmail 2. Click the ✏️ Sign PDF button next to the attachment 3. Draw or upload your signature, then drag it anywhere on the document 4. Download the signed PDF or attach it directly to a reply Features: - Draw your signature with a mouse or trackpad - Upload an image as a signature (PNG, JPG, etc.) - Paste an image from clipboard - Save signatures for reuse across sessions - Place multiple signatures on any page - Stamp a signature to all pages at once - Resize and reposition signatures freely - Undo (Cmd+Z) support - Multi-page PDF support with page navigation and zoom - Attach the signed PDF to a new email, a reply, or a reply-all — without leaving Gmail Your PDF never leaves your browser. Everything is processed locally.