Why compress a PDF?
Most PDFs balloon because of high-resolution images, fonts that aren't subset, or extra metadata. Compressing rebuilds the file so it's easier to email, faster to upload, and cheaper to store.
Step-by-step
- Open the Compress PDF tool.
- Drop your file (or browse to select).
- Wait a few seconds while MyPDFKitty optimizes the file.
- Download and use the smaller PDF.
Tips for the best result
- Image-heavy PDFs compress more than plain text PDFs.
- If you're emailing, target a final size under 10 MB.
- For ATS or government portals, target 5 MB or less.
- Need to drop a few pages? Use Split PDF first.
Common problems
If your file barely shrank, it's probably a scanned PDF — those are essentially packs of images. Either run OCR first, or split out the heaviest pages and re-export them as JPGs at lower resolution before merging again.