Processed on your device

Compress PDF

Reduce the size of scanned or image-heavy PDFs directly on your device.

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Choose a PDF to compress

Click to choose or drop files here. We inspect the file content, not only its extension. JPG and PNG images are also accepted and become PDF pages.

No uploads

How to Compress PDF

The Compress PDF tool reduces scanned or image-heavy document sizes with selectable compression levels. Everything runs locally in your browser, and the original file is never sent to PDFKerja servers.

Step 1
Choose a PDF
Open a scanned or image-heavy PDF document.
Step 2
Choose compression
Balance file size against page sharpness.
Step 3
Compress and download
Create a smaller file directly on your device.

Frequently asked questions

Are my files uploaded?

No. Files are processed locally in your browser and are not sent to PDFKerja servers.

Is this tool free and watermark-free?

Yes. The tool is free to use, requires no account, and does not add a watermark to the output.

Which PDFs benefit most from compression?

Scanned and image-heavy PDFs usually shrink the most. A text-based PDF that is already optimized may not become smaller.