PDF Watermark
Add text watermarks to PDF documents with precise control over placement, opacity, color, and page targeting. Use dynamic variables to auto-populate dates, page numbers, and filenames.
Key Features
Flexible Positioning
Place watermarks in 8 positions: Diagonal, Center, Top, Bottom, Top-Left, Top-Right, Bottom-Left, or Bottom-Right.
Adjustable Opacity & Styling
Control opacity from 5% to 100%, font size from 8pt to 200pt, and set any custom color for your watermark text.
Page Targeting
Apply watermarks to all pages, first page only, last page only, odd pages, even pages, or specific page ranges.
Dynamic Variables
Use {{date}}, {{datetime}}, {{page}}, {{total_pages}}, and {{filename}} in watermark text for auto-populated values.
Use Cases
See how teams are using this API in production
Draft & Confidential Labels
Mark documents as DRAFT, CONFIDENTIAL, or INTERNAL with diagonal watermarks before distribution.
Legal & Compliance
Add timestamps, page numbers, and filenames to legal documents for audit trails and compliance.
Brand Protection
Watermark marketing materials, proposals, and reports with company name or logo text to prevent misuse.
Document Versioning
Add version numbers and dates to document headers or footers to track revisions across teams.
Print Control
Add 'DO NOT COPY' or 'SAMPLE' watermarks to prevent unauthorized reproduction of sensitive documents.
Automated Stamping
Use dynamic variables — {{date}}, {{page}}, {{total_pages}}, {{filename}} — to auto-stamp documents with context at render time.
Why Choose Us
Full Control
8 positions, adjustable opacity and size, custom colors, and page targeting cover every watermarking need.
Dynamic Content
Template variables auto-populate dates, page numbers, and filenames — no manual editing required.
Single API Call
Upload your PDF, set watermark options, get back a watermarked document. Simple REST endpoint.
Watermark PDFs Programmatically
Add watermarks to any PDF with a single API call. Start your free trial.