How much can PDF files be compressed?

It depends on the content. Image-heavy PDFs can often be reduced by 50-80%. Text-only documents may see smaller reductions. Our auto mode tries 13+ strategies to find the best result.

Will compression reduce the quality of my PDF?

Auto mode balances file size and readability. You can also set a target size in manual mode. Text remains sharp; only embedded images may be slightly optimized.

Is there a file size limit?

You can upload PDFs up to 50 MB. For batch compression, drop multiple files at once — each is processed independently.

Is my PDF safe during compression?

Yes. Files are processed on our server and automatically deleted within 15 minutes. We don't store, share, or analyze your documents.

What compression strategies are used?

We use Ghostscript with 13+ strategies including screen, ebook, printer, and prepress quality levels combined with various image downsampling and resolution settings to find the smallest file.

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