Private browser PDF tool

Compress a PDF

Make image-heavy PDFs smaller in your browser, with clear quality settings.

Your documents never leave this device. Processing happens in this browser.

PDF filePDF

How PDF compression works

This tool re-renders every page as a JPEG image inside a new PDF. It can reduce scanned and image-heavy files substantially, but it flattens selectable text, links and form fields. It is not the right tool for a text document you need to edit.

Choose a setting

Start with 1600 px and balanced quality. Choose 1200 px for a smaller file you only need to read on screen, or 2200 px when small text matters. The result shows the original and new file sizes, so you can decide whether the trade-off is worthwhile.

Limits and privacy

Very large PDFs can exceed browser memory. Password-protected PDFs are not opened or bypassed. This tool does not perform OCR. For protected documents, use password protect a PDF.

Compress a PDF questions

How does this PDF compressor work?

It renders every page as a JPEG and puts those images in a new PDF. This can shrink scans and image-heavy files, but it flattens selectable text, links and form fields.

Will it always make my PDF smaller?

No. A PDF that already uses efficient images may stay similar in size or grow. The tool shows both file sizes after processing.

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