PDFCompress
Offline, from start to finish.
Your PDFs are processed on your Mac. No account, no upload, and no waiting for a connection.
A lighter PDF. A simpler workflow.
Make your PDFs lighter.Keep them on your Mac.
Compress PDFs in batches, fine-tune image quality, and compare the result. Everything happens locally, with your original files kept intact.
Coming to the Mac App Store
For macOS 14 and later
100%processed on your Mac
5compression options
19interface languages
Features
Less size. More peace of mind.
The details that matter stay in your hands, from the first import to the final export.
Keep what makes a PDF useful.
Optimize document structure, fonts, and images while preserving searchable text and vectors. Your original files stay untouched.
See it before you save it.
Switch between the original and result, or compare them side by side. Browse pages, zoom in, and search text before exporting.
PDFCompress
Your file. Your balance.
Choose a preset, or set JPEG quality and target DPI independently. Start with Balanced and adjust to suit your document.
Lossless keeps image encoding and resolution. Other modes may change image quality. A 100% JPEG setting is not lossless.
5 compression optionsPDF
Lossless
- JPEG quality
- —
- Target DPI
- Original resolution
Conservative
- JPEG quality
- 90%
- Target DPI
- Original resolution
Balanced
- JPEG quality
- 80%
- Target DPI
- 200 DPI
Smaller Size
- JPEG quality
- 60%
- Target DPI
- 150 DPI
Custom
- JPEG quality
- 0%–100%
- Target DPI
- Original resolution / 72–600 DPI
How it works
From a full folder to lighter files.
- 01
Add your PDFs
Drag files into the app, use Add PDF, or open them from Finder.
- 02
Choose and compress
Select a preset or your own quality and DPI settings, then start the batch.
- 03
Compare and export
Check the result and export one file or all smaller results to a folder you choose.
A few things worth knowing.
Will every PDF become smaller?
No. Savings depend on the document. Already optimized PDFs may not shrink further. The app only keeps smaller results that pass its validation checks.
Will my original file change?
No. The app works on a local copy and exports separately. It refuses to overwrite an existing file; batch exports add a number when names conflict. Export your results before quitting.
Which PDFs are not supported?
Encrypted, digitally signed, fillable, damaged, and zero-page PDFs are skipped. The app does not add OCR or compress to a specified target file size.
Your documents stay yours.
No upload is part of the process. Read exactly how the app handles files and how this website works.