100% Client-Side • Images never leave your device
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12.8 MB📄
2.1 MB84% smaller
Compress PDFs Online — Free & Private
100% Browser-Based and Free
or drop files here
PDF files — max 50 MB
100% client-side. Your PDF never leaves your device.
Features
Browser-Based Compression
Your PDF never leaves your device. All compression happens locally using PDF.js and jsPDF — no server uploads, no waiting in queues.
Adjustable Quality
Choose between high quality (85% JPEG, 200 DPI), balanced (65% JPEG, 150 DPI), or smallest file (45% JPEG, 100 DPI). Fine-tune the trade-off between size and clarity.
Preserves Page Layout
Each page is rendered at your chosen DPI and reassembled with matching dimensions. Page sizes, orientations, and layout are faithfully preserved in the compressed output.
FAQ
How much can PDFs be compressed?+
Typical compression ranges from 40-80% depending on the content. PDFs with many high-resolution images compress the most. Text-heavy PDFs with few images may see less dramatic reductions.
Is there a file size limit?+
The tool supports PDFs up to 50 MB. Since processing happens in your browser, larger files depend on your device's available memory and the number of pages.
Does compression reduce PDF quality?+
The High Quality preset preserves excellent readability while still reducing file size. The Balanced preset works well for most documents. The Smallest preset is best for quick previews or sharing where file size matters most.
Will text remain selectable after compression?+
The compression process renders each page as an image, so text will no longer be selectable or searchable in the compressed output. If you need selectable text, consider using the High Quality preset for the best readability.
Is my PDF uploaded to a server?+
No. Your PDF is processed entirely in your browser using JavaScript libraries (PDF.js and jsPDF). No data is sent to any server. Your documents remain completely private.