Frequently asked questions
How much can I compress a PDF?
It depends on the file — image-heavy PDFs shrink the most. The compressor automatically balances size against visual quality — choose Best quality, Balanced, or Smallest file for the trade-off you want.
Does compressing reduce quality?
The optimizer keeps text crisp and only reduces where it will not be noticeable, so documents stay readable. Choose a lighter setting if you want to prioritise quality over size.
Is there a file size limit?
Uploads are capped at 20 MB to keep processing fast and reliable. For most everyday documents that is plenty of headroom.
Are my files stored?
No. Files are processed securely and automatically deleted within 24 hours — they are never kept or reused.
Is there a usage limit or a paid plan?
Everyone gets 15 free cloud credits a day, shared across all the cloud tools — enough for everyday use. For heavier use, Kitolity Pro ($6/mo) and Pro Max ($8/mo) add a monthly pool of cloud credits, uploads up to 100 MB, and no ads. Every browser-based tool stays unlimited and free.