Sign PDF Online - Add Signature to PDF & Gmail

Tracking since May 27, 2026.

Changelog

• Jun 3, 2026
  description

  SignPDF is a lightweight Chrome extension that lets you sign PDF documents directly in your browser and Gmail — without registration, complicated software, or uploading files to third-party platforms.
  
  Quickly add your signature to any PDF in seconds:
  
  Draw your signature with your mouse
  Upload a PNG or photo of your signature
  Create a stylish text signature
  Automatically remove image backgrounds
  Add realistic scan effects
  Resize and place signatures anywhere in the document
  
  SignPDF works directly inside your browser with a simple and fast workflow designed for everyday use.
  
  Features:
  • Sign PDF files instantly
  • Works with Gmail PDF attachments
  • No registration required
  • Local signature storage in your browser
  • Multiple reusable signatures
  • Automatic signature placement suggestions
  • Multi-page PDF support
  • Simple drag-and-drop signature positioning
  • Fast PDF export and download
  
  Perfect for:
  
  Contracts
  Agreements
  Invoices
  HR documents
  Business paperwork
  Everyday PDF signing
  
  Unlike complex PDF editors and enterprise e-signature platforms, SignPDF focuses on speed, simplicity, and ease of use.
  
  Install SignPDF and sign your PDFs in seconds.

  Sign PDF online and add your signature to any PDF directly in your browser — including PDF attachments in Gmail. No registration required.
  
  SignPDF is a lightweight Chrome extension that lets you sign PDF documents and add your signature to any PDF — without registration, complicated software, or uploading files to third-party platforms. Everything works locally in your browser, so your documents stay private.
  
  ✍️ Add your signature to a PDF in seconds:
  
  • Draw your signature with your mouse
  • Upload a PNG or photo of your signature
  • Create a stylish text signature
  • Automatically remove image backgrounds
  • Add realistic scan effects
  • Resize and place your signature anywhere in the document
  
  ⭐ Why choose SignPDF?
  
  ✓ Sign PDF files instantly — no waiting, no sign-up
  ✓ Works directly with Gmail PDF attachments
  ✓ No registration and no account required
  ✓ Local signature storage — your data stays in your browser
  ✓ Save multiple reusable signatures
  ✓ Automatic signature placement suggestions
  ✓ Multi-page PDF support
  ✓ Simple drag-and-drop signature positioning
  ✓ Fast PDF export and download
  
  📄 Perfect for signing:
  
  • Contracts and agreements
  • Invoices and business paperwork
  • HR and onboarding documents
  • Everyday PDF signing
  
  Unlike complex PDF editors or heavy enterprise e-signature platforms, SignPDF focuses on speed, simplicity, and privacy. No bloat, no learning curve — just open your PDF and sign it.
  
  🚀 How to sign a PDF:
  
  1. Open your PDF or a Gmail attachment
  2. Draw, type, or upload your signature
  3. Place it anywhere on the document
  4. Download your signed PDF instantly
  
  Install SignPDF and add your signature to any PDF in seconds — right in your browser.

• Jun 3, 2026
  name

  SignPDF

  Sign PDF Online - Add Signature to PDF & Gmail

Permissions & access

Permissions

storagetabsscriptingactiveTab

Host access

https://mail.google.com/*, chrome-extension://mhjfbmdgcfjbbpaeojofohoefgiehjai/*, https://drive.google.com/*, https://docs.google.com/*

Screenshots