$megatools --pdf-watermark --vector-overlay▊

PDF Watermark & Stamp Studio

Stamp diagonal or centered text watermarks across all pages of your PDF with live visual preview and instant in-browser compilation.

> PDF_SOURCE_FILE

🏷️

Drop PDF here or click to browse

100% private — processed locally in browser RAM

> STAMP_ATTRIBUTES

Watermark Text:

Rotation Angle:45°

-90°0° (Horizontal)45° (Diagonal)90°

Font Size:54px

Opacity:25%

Overlay Color:

> REALTIME_PAGE_PREVIEWSimulated A4

$ cat tips.txt

pdf-lib Client Engine

1Upload or drop any PDF document into the workspace
2Type custom watermark text or pick quick presets ('CONFIDENTIAL', 'DRAFT', 'DO NOT COPY')
3Customize rotation angle (e.g. 45° diagonal), font size, opacity (10% to 80%), and color
4Click Stamp & Download PDF to compile the watermarked document instantly in browser memory

Target Document:None loaded

Pages to Stamp:0

Overlay Vector:45° / 25% Opacity

Processing:100% Client-Side

•100% private & client-side — your confidential documents are never uploaded to any remote server
•45° diagonal watermarks with 20-30% opacity provide maximum deterrence without obscuring body text
•Works on multi-page PDF documents of any page count

Input

contract.pdf with 'CONFIDENTIAL' text at 45° (30% opacity)

Output

All pages stamped with vector text overlay and saved as contract-watermarked.pdf