Is processing done locally?

Yes. Watermark processing runs locally in your browser, and files are not uploaded.

Can I process files in batch?

Yes. You can import multiple PDFs, apply one configuration, and export all results at once.

Yes. Use page range options including all, odd/even, interval, or custom expression.

Those files cannot be processed directly. Please decrypt or replace the file first.

Yes. Preview and export share the same rendering logic and parameters.

Performance depends on page count, resolution, and available memory. Batch in smaller groups for better speed.

Yes. After initial resources are cached, you can continue to process local files offline.

One export run supports one mode. You can export text mode first, then image mode if needed.

Add text or image watermark with local processing

Foreground/background, angle, opacity, tiled repeat
Batch files with one shared configuration

Drag multiple PDFs here or click to select

Merge multiple PDF files instantly

Configure once and apply the same watermark rules to all files

Choose text watermark or image watermark for each export run

Apply watermark by all/odd/even/interval/custom page expression

Switch foreground/background and single/tiled placement

Live preview helps confirm the result before final export

Everything runs locally in your browser with no upload

Upload one or multiple PDF files

Set type, opacity, angle and page range

Export single PDF or ZIP package

Is processing done locally?: Yes. Watermark processing runs locally in your browser, and files are not uploaded.
Can I process files in batch?: Yes. You can import multiple PDFs, apply one configuration, and export all results at once.
Can I apply watermark to only part of pages?: Yes. Use page range options including all, odd/even, interval, or custom expression.
What about encrypted or corrupted PDFs?: Those files cannot be processed directly. Please decrypt or replace the file first.
Will preview match export output?: Yes. Preview and export share the same rendering logic and parameters.
Why can export be slow on large files?: Performance depends on page count, resolution, and available memory. Batch in smaller groups for better speed.
Can I use it offline?: Yes. After initial resources are cached, you can continue to process local files offline.
Can text and image watermark be used together?: One export run supports one mode. You can export text mode first, then image mode if needed.