✨ All tools are 100% free — no signup needed
HomeMerge PDFCompress PDFEdit PDF100% FreeConvert PDF

Compress PDF Online — Reduce File Size Free

Reduce PDF file size online for free without losing quality.

Upload your PDF to compress pdf online — reduce file size free

Drag & drop a PDF, or click to browse

Choose File

PDF files only · Max 50 MB

Processed locally in your browser
Never uploaded to any server
Auto-deleted after session
Instant processing
Pro Tip

Did you know? You can double-click any text in the editor to edit it directly. PDFino automatically matches the original font style!

Reduce PDF file size online for free without losing quality. Choose from 3 compression levels. 100% browser-based — your files stay on your device.

100% Browser-Based
Files Never Leave Your Device
No Installation Required
Fast Processing
Mobile Friendly
Secure PDF Editing
Privacy Focused
100% Browser-Based
Files Never Leave Your Device
No Installation Required
Fast Processing
Mobile Friendly
Secure PDF Editing
Privacy Focused

How to compress pdf online — reduce file size free

1

Upload

Select your PDF files from your computer or drag and drop them into the upload area.

2

Process

Wait a few seconds while our system handles the compress pdf online — reduce file size free.

3

Download

Once finished, download your new PDF file directly to your device for free.

Shrink PDF Files Without Losing Quality

Large PDF files are a pain to email, upload, and store. PDFino's compression tool reduces your PDF file size by optimizing embedded images while preserving text clarity. Choose from three compression levels: Low (minimal quality impact), Medium (balanced), or High (maximum size reduction). All processing happens directly in your browser, meaning your sensitive documents are never uploaded to any server.

Frequently Asked Questions

Results vary by content. Image-heavy PDFs often shrink by 50-80%, while text-heavy documents may see 10-30% reduction.