Compress PDF
Reduce PDF file size locally while preserving document clarity.
Reduce PDF file size by recompressing embedded images and optimizing the document structure. Choose a compression level, see the size difference, and keep a private, smaller copy.
How to use Compress PDF in 3 simple steps
Select Your Files
Drag and drop your document directly into the browser. Your file stays on your hardware and is never transmitted across the network.
Configure Options
Customize parameters, page sequence, orientation, or compression presets with instant interactive live feedback.
Save & Download
Click the action button. The new document is compiled in memory and downloaded straight to your device.
Frequently Asked Questions
How much smaller will my PDF get?
It depends entirely on the document: image-heavy scans usually shrink the most, while text-only PDFs may change little because they are already compact.
Will compression make my text blurry?
Compression targets embedded images, not text. Selectable text is preserved as-is; only image quality is reduced according to the level you choose.
Are my files uploaded to a server?
No. PDFMiniFly processes everything locally inside your browser. Your document never leaves your device, and once the app is installed it also works offline.