PrivatePDFKit

Watermark PDF

Add a custom text stamp across every page of your PDF.

Drop a PDF here to watermark, or browse

Processed locally in your browser. No files are uploaded.

Watermark PDF

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Drop file here, or browse

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This text will be stamped diagonally across every page.

3

Add Watermark & Download

Frequently Asked Questions

Yes. We use a zero-upload architecture. Your files are processed entirely in your browser using local resources. We never see, store, or have access to your data.
100% free. There are no daily limits, no premium features hidden behind paywalls, and we will never add a watermark to your processed files.
Yes! Once you load our website, the tools are cached in your browser. You can turn off your Wi-Fi and continue to merge PDFs, edit files, and resize images securely.
Because processing happens on your device, the only limit is your computer's RAM. Most modern devices can easily handle 500MB+ files without any issues.

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Edit PDF

Add text, draw, overlay images, and insert signatures natively on any PDF.

Merge PDF

Combine multiple PDFs into one document, in the order you choose.

Compress PDF

Reduce PDF file size drastically. Perfect for job portals and email attachments.

Split PDF

Extract specific pages from a large PDF document.

Unlock PDF

Remove passwords from encrypted PDFs locally and securely.

Redact PDF

Permanently black out sensitive text — destroyed, not just hidden.

Image to PDF

Turn JPG and PNG images into a single, shareable PDF file.

Passport Photo

Generate a print-ready A4 sheet of standard passport photos.

Convert Image

Cross-convert between WebP, PNG and JPG — in bulk, with quality control.

Resize Image

Resize images to exact pixel dimensions without stretching.

Compress Image

Shrink JPG and PNG file sizes without losing visible quality.

Paste to Image Converter

Paste screenshots directly (Ctrl+V) and convert to PNG, JPG, WebP, or ICO.

Bulk Resize Image

Batch process up to 50 images at once. Scale dimensions proportionally or hit exact KB limits.

Remove Background

Remove image backgrounds automatically with on-device AI.