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Watermark PDFs at scale.

Custom text, image, position, opacity — every page.

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1 credit per run·Sandbox keys free·REST + Webhooks
01 // COMMON USE CASES
Draft protection
Legal marking
Branding proofs
02 // WHY ASHDOCS
Trust
Zero-retention
Toggle it in one line. We delete files immediately after your download.
Fair
Sandbox forever
Test keys never charge credits. Wire up CI without touching your budget.
Global
Signed webhooks
Every event is HMAC-signed with `X-ASHDOCS-Signature`. Verifiable in one line.
03 // RELATED TOOLS
/html-to-pdf
The Chrome-based renderer built for invoices, receipts, and reports.
/url-to-pdf
Wait for `networkidle`, block ads, and archive pages exactly as they render.
/merge
Order-preserving, metadata-aware, no page loss.
/split
By page, by range, by count. All headless.
/compress
Ghostscript-backed, size-mode tunable.
/password-add
AES-256, owner + user passwords.

Ship Watermark PDFs at scale. in 5 minutes.

100 credits free at signup. No card required.

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