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Upload a PDF and stamp your signature image (drawn on canvas or uploaded from a PNG/JPG/WebP) onto any page. Drag, resize, and place. 100% private - files never leave your browser.
This digital signature stamp runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
Stamp is signature-only - single-purpose. Fill-and-Sign adds text, dates, and checkmarks too.
Same browser-only philosophy. Free, no signup, no upload.
Add text, dates, checkmarks and signatures to any PDF - fully private.
Add a text or image watermark to PDFs and images - diagonal, opacity, repeat.
Add a text watermark (DRAFT, CONFIDENTIAL) to every page of a PDF.
Combine multiple PDF files into a single document - drag-to-reorder, 100% private.
Split a PDF into multiple files by custom ranges - download as a ZIP.
Shrink PDF size by re-compressing embedded images locally.
We design and ship internal tooling, dashboards, and customer-facing utilities. Tell us what you need and we'll scope it.