Free · Local processing

Compress PDF

Make your PDF smaller with local processing. Choose the image quality that suits your document.

Your PDF stays on your device. No upload or account required.

Drop a PDF here or choose a file

PDF only · Up to 50 MB and 100 pages

Compression level

BasicOptimize file structure without reducing image quality.BalancedReduce supported image resolution and quality. Text remains searchable.StrongUse lower resolution and quality for supported images. Text remains searchable.

Balanced and strong modes change supported images and may reduce detail. Keep your original and check the result before sharing.

How to compress a PDF

1
Choose a PDF
Open one PDF up to 50 MB and 100 pages. Keep the original.
2
Select a compression level
Basic preserves image quality. Balanced and strong reduce supported images.
3
Download and review
Compare file sizes, download the result, and check image detail and text.

Smaller files with control

Processing on your device

Compression runs in your browser without uploading your PDF or creating an account.

Searchable text preserved

Text and page layout remain intact. Pages are not converted to full-page images.

Clear results

See the size change and optimized image count. If there is no saving, keep the unchanged original.

Frequently asked questions

Will every PDF become smaller?

No. PDFs that are already optimized or contain unsupported image types may not shrink. We return the original unchanged when there is no saving.

What is the difference between the levels?

Basic optimizes file structure without image quality loss. Balanced and strong use lossy compression and lower resolution for supported images.

Can I still search and copy text?

Yes. Existing text remains searchable and selectable. Scanned PDFs without a text layer do not gain one.

Is my PDF uploaded?

No. Processing stays in your browser. No account is required and the original file is not changed.

What files are supported?

One PDF up to 50 MB and 100 pages. Encrypted, digitally signed, XFA, and resource-intensive PDFs may be rejected. Unsupported image types are left unchanged.