Compress PDF
Shrink large PDF files by re-rendering each page as an optimized, size-efficient image.
This compressor works by re-rendering each page as an image, which produces the biggest savings on scanned or image-heavy PDFs. Because pages become images, text is no longer selectable in the output — for text-heavy documents the size reduction may be smaller.
Upload a PDF file
Drag & drop files here, or
Files are processed securely in your browser
How It Works
- 1Upload the PDF you want to shrink.
- 2Choose a compression level.
- 3Click Compress PDF.
- 4Download the smaller file and compare the size reduction.
Features
- Three compression presets from light to aggressive
- Works well on scanned and image-heavy PDFs
- Shows the before/after file size instantly
Privacy
This tool runs entirely in your browser using WebAssembly and Canvas — your PDF is never uploaded to a server.
Frequently Asked Questions
Compression works by converting each page into an optimized image. This keeps the visual layout intact but removes selectable text, similar to a scanned document.