Add Signature to PDF
Local ProcessingPlace a signature image onto one, several, or all pages of a PDF, positioned in a live preview.
How It Works & Processing Standards
Place a signature image onto one, several, or all pages of a PDF, positioned in a live preview.
Password-encrypted PDFs are not supported.
This tool creates or inserts signature images; it does not provide identity verification or a legally guaranteed electronic signature service.
Use only your own stamps or signatures, or ones you are authorized to use.
Tool processing runs in your browser. If you create a calculator or conversion share link, its values are included in the URL. See the privacy policy for account, analytics and advertising data.
Current Limits
- Desktop max file size: 50MB
- Mobile max file size: 25MB
- Desktop max PDF pages: 300 pages
Places a signature image onto PDF pages you choose, positioned by dragging in a preview.
The image is embedded once and reused on every page. This does not create a legally binding electronic signature — it only places an image. "Blend with paper" composites with multiply blending so white areas do not hide the text underneath.
How to Use Add Signature to PDF
- 1Choose the PDF and signature imageA transparent-background PNG looks cleanest.
- 2Position and size itDrag in the preview or use arrow keys; +/- resizes, Page Up/Down switches pages.
- 3Choose pages and downloadSign the positioned page, all pages, or specific page numbers, then save.