PDF compressor

Compress image-heavy PDFs locally

Reduce eligible embedded JPEG images without uploading the PDF or pretending every document can shrink.

Before you choose a PDF

Honest local PDF compression.

01Optimize embedded JPEG images
Most useful for scans and image-heavy PDFs.
02Preserve text and vectors
Non-image PDF content is left intact.
03Show real savings
Compare original, output, and percentage saved.
04Keep the original when safer
No fake success when a file cannot shrink.

Scoped v1PNG-only, vector, text, encrypted, and already optimized PDFs often cannot benefit from this browser-only method.

Your PDFs stay on your deviceProcessed locally in your browser. We never upload or store your PDFs.

Best results

Scans and photo-heavy PDFs

Large embedded JPEG images create the strongest opportunity. Balanced reduces dimensions and quality moderately; Strong uses a smaller image ceiling and lower JPEG quality.

Preservation

Text and vector content stay intact

The engine replaces only eligible JPEG image objects. Page dictionaries, text streams, vector drawing commands, and other image formats are not rasterized or rewritten as pictures.

Limitations

Some PDFs are already efficient

Text-only, vector-heavy, PNG-based, encrypted, or previously optimized PDFs may save little or nothing. FileIvy returns the original when a rebuilt file is not meaningfully smaller.

Privacy

Compression happens in browser memory

The PDF is parsed, image candidates are decoded, and the result is verified locally. No backend, Ghostscript service, password flow, or third-party file API is involved.