Edit & markup
Annotations, stamps, forms, crop, resize, page numbers, redaction, and image swap.
- Edit PDF
Advanced browser editor: markup, stamps, redactions (box or text selection), links, and form fields—exported with MuPDF and pdf-lib in your browser.
- Crop PDF
Set crop boxes to trim page margins using a rectangle in points.
- Resize PDF
Resize pages to a paper size or scale factor.
- Add Watermark
Stamp text or image watermarks on PDF pages.
- Stamp PDF
Add a foreground text or image stamp (distinct from tiled watermark).
- Add Page Numbers
Automatically number pages in your PDF.
- Redact PDF
Permanently burn black rectangles over selected areas by rasterizing affected pages.
- Fill PDF form
Fill AcroForm fields using a JSON data file (export field names from a similar PDF first).
- Replace embedded image
Swap an embedded image XObject by object number or by page + resource id.