File Compressor reduces PDF size by recompressing embedded images and removing redundant data, with a choice of compression level so you can trade off size against visual quality.
Scans and image-heavy files shrink the most.
Low looks identical, Medium suits email, High fits strict portals, Extreme is for text-only files.
See the before and after size, and a quality preview, before you save.
Results depend on the file. Image-heavy scans shrink a lot; PDFs that are mostly text shrink less.
| You want to… | Use this tool |
|---|---|
| Low | Looks the same as the original |
| Medium | Around 50–70% smaller |
| High | Around 70–90% smaller |
| Extreme | As small as possible |
Sales teams compress proposal PDFs from 25 MB to under 10 MB to fit Gmail and Outlook attachment limits.
Job seekers compress resume PDFs to fit application portal upload limits (usually 5 MB).
Compliance teams compress years of archived PDFs to cut cloud storage costs by 50-80%.
No — text and vector content are untouched; only embedded raster images are recompressed.
Typical reduction: Low (10-30% smaller), Medium (50-70%), High (70-90%), Extreme (80-95%). Text-only PDFs compress less; image-heavy PDFs compress more.
At Low compression, images stay identical. Medium downsamples to 150 DPI (still print-quality). High and Extreme go to 100/72 DPI (screen-quality only).
Medium for general sharing (good balance). High for email attachments. Extreme for screen-only viewing where size matters most. Low for archival.
Unlock first with our Unlock PDF tool. Encrypted PDFs cannot be compressed directly for security reasons.
Yes — 30 compressions per day for guests, more on free accounts. No watermark on output.
No. Text searchability is preserved at all compression levels. The compress PDF tool retains text as vector data, only modifying embedded images.
2-10 seconds for most files. Larger PDFs (200+ pages with many images) may take 30-60 seconds.
