What formats are supported?

We support JPG, PNG, WebP, AVIF, JPEG-XL, JFIF, GIF, SVG, TIFF, BMP, ICO, HEIC, RAW (CR2, NEF, ARW, DNG, ORF, RW2)

No, files are NOT stored. They are deleted immediately after conversion and archive download. Complete privacy.

WebP is a modern format that reduces file size by 30-70%

What is AVIF and why use it?

AVIF is a modern image format based on AV1 codec. Provides better compression than WebP and JPG (30-50% smaller size with same quality). Supports transparency, HDR and animation. Supported in all modern browsers: Chrome 85+, Firefox 92+, Safari 16+.

Compress PDF Online — Free

Compress PDF online without losing important quality. Reduce file size for email and publishing. Free, no registration.

How to compress a PDF?

1. Upload a PDF — drag the file into the upload zone or choose it via file browser.

2. Choose a level — low (high quality), medium or high (small size).

3. Download — get a reduced PDF file.

Which compression levels are available?

Three levels are available: "Low" — maximum quality, "Medium" — a balance of size and quality, "High" — the smallest size thanks to stronger image compression.

How much will the file shrink?

The result depends on the content: PDFs with scans and photos compress 2-5x. Text documents are already compact and barely shrink.

❓ Frequently Asked Questions

Which compression level should I choose?

For print documents — low. For email and web publishing — medium or high.

Will the text stay readable?

Yes, compression mainly affects images, the text remains crisp.

Can I compress several PDFs at once?

Yes, up to 3 files at a time, each up to 25 MB.

Compress PDF Online — Free

How to compress a PDF?

Which compression levels are available?

How much will the file shrink?

Related operations

❓ Frequently Asked Questions