Compress PDF File

up to 5 files up to 250 MB total up to 1000 pages total

Compress PDF online — quickly reduce file size without losing quality. The tool optimizes documents for email or website upload.

No more manually deleting pages or reducing content quality. The algorithm intelligently compresses text and images in the PDF document. The file remains fully readable and professional-looking.

The process is fully automated. Simply upload your document, and our system will quickly analyze and compress it. The optimized PDF will be ready for download after compression.

Your files are safe with us Learn more

Auto-deletion Files deleted after 2 hours
Full Privacy Never shared with third parties
Secure Connection SSL/TLS encryption

Frequently Asked Questions

When compressing a PDF, we optimize the file size so that it remains convenient to share and view.

  • Text that can be selected with the mouse (computer‑generated text) is compressed without loss of quality — it stays sharp and fully selectable.

  • Images may lose some fine detail, but this is hardly noticeable during normal viewing.

  • If the text was scanned (meaning it is actually part of an image), the same rules apply as for images: it may become slightly less sharp, but usually remains fully readable.

Yes. PDFStorm offers 3 compression levels:

  1. High: lower quality, but smaller file size

  2. Medium: optimal balance between quality and compression

  3. Low: better quality, but larger file size