Is the PDF uploaded to a server?

No. Compression happens entirely in your browser. Your file is never sent to any server.

How much will my PDF be compressed?

Results depend on content. Image-heavy and scanned PDFs often shrink 60–80%. Text-only PDFs may see 20–40% reduction.

Will the text still be selectable after compression?

The compressed PDF uses image-based pages. Text will appear the same visually but will not be selectable as text (similar to a scanned PDF).

Yes, completely free with no signup required.

Compress PDF Online Free

Reduce your PDF file size instantly. Processed entirely in your browser — your file is never uploaded to any server. Supports PDFs up to 50MB.

1 Upload PDF

PDF only · Max size: 50MB

2 Compression Level

Medium

Max Compression Balanced High Quality

3 Compress

💡 Compression works by re-rendering PDF pages as optimized images. Text-heavy PDFs may see smaller savings than image-heavy ones. Scanned PDFs usually compress the most.

How to Compress a PDF

Upload PDF — Select any PDF file from your device (up to 50MB).

Choose Level — Pick Max Compression for smallest file, or High Quality for best visual output.

Download — Click Compress PDF and save the smaller file instantly.

Frequently Asked Questions

Is my PDF uploaded to a server? +

No. Everything happens in your browser using PDF.js and jsPDF. Your file never leaves your device.

How much compression can I expect? +

Image-heavy and scanned PDFs can shrink 60–80%. Text-only documents may see 20–40% reduction depending on the compression level chosen.

Will text remain selectable? +

The compressed PDF renders pages as optimized images, so text will look the same visually but won't be directly selectable. This is the trade-off for maximum compression.

What is the maximum file size? +

Up to 50MB per PDF file. Larger files may take longer to process depending on your device speed.

Is this tool free? +

Yes, completely free. No signup, no watermark, no limits on how many times you use it.