Drag a PDF — or a whole batch. Pick PAID, UNPAID, VOID or custom text. Add Bates numbering. Download stamped PDFs or a single merged file. Works entirely in your browser — your files never leave your device.
No sign-up, no uploads, no waiting. The whole thing runs in your browser.
Drag and drop one PDF or a whole batch. Reorder files, then stamp them all in one go.
Pick PAID, UNPAID, VOID or custom text. Set the color, opacity, angle and size. Drag to reposition.
Click "Stamp & Download". The stamp is rendered directly into the PDF — not just a CSS overlay.
Pre-built stamps for the most common states, plus full custom text for anything else.
Process entire document sets in one go — with sequential page IDs, combined output, and no file size limits.
Load as many PDFs as you need. Apply the same stamp and settings to all of them in a single click. Reorder files as needed before processing.
Add sequential page IDs (BATES-0001, Exhibit 1…) to every page. Set a custom prefix, padding, position, and color — and continue the sequence across all files in a batch.
Download your stamped batch as individual files in a ZIP archive, or merge everything into a single PDF in the order you specified.
Adjust color, opacity, angle, and font size. Drag the stamp to any position on the page.
Optionally add today's date and a reference number (invoice ID, PO number) below the stamp text.
Stamp every page of a multi-page invoice, or just the first. You choose per download.
Your PDF is processed entirely in the browser using PDF-lib. Zero uploads, zero servers, zero risk.
The stamp is written directly into the PDF file — sharp at any zoom, perfect for printing.
Also available as a native Mac and Windows desktop app via Tauri. ~5 MB, works fully offline.
Load multiple PDFs and stamp them all at once. Drag to reorder, then download as a ZIP or a single merged PDF.
Add sequential page IDs with a custom prefix, digit padding, corner position, and color. Continues across all files in a batch.
Download your batch as individual stamped files in a ZIP, or combine everything into one PDF in the order you chose.
No account. No cloud. No subscription. Your invoices are yours.
Your PDF never leaves your device. Processing happens 100% in the browser using local JavaScript.
No sign-up, no email, no password. Buy once, use the app directly. Nothing to log in to.
One-time payment. No subscription, no renewal, no price hikes. Pay once and it's yours.
Web app and desktop app (Mac + Windows). No tiers, no upsells.
Try it free first. No credit card required to try the app.
Drop your first invoice and see the stamp in under 10 seconds. No sign-up required.
Launch Stamp My PDFs — it's free to try