PDF SealBox logo PDF SealBox

Productivity, PDF tools Browser PDF tools for adding visible stamps, cross-page seals, page numbers, and watermarks.

About PDF SealBox

PDF SealBox is a browser-based set of tools for adding visible text or image stamps, cross-page seals, page numbers and watermarks to PDFs; converting images to PDFs or PDF pages to images; and splitting PDFs. I built it after seeing coworkers print and scan entire files just to archive stamped copies. In my team’s workflow, digital stamping removed that print-and-scan step. A visible stamp is not a cryptographic digital signature.

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