Compress PDF Files Online

Reduce the size of your PDF documents while keeping them legible. Files are compressed completely inside your browser — 100% private, zero server uploads.

Choose files or drag and drop

PDF files only

Files stay on your device — never sent to any server

Quick workflow

How to Compress a PDF Online

Select a file, adjust compression parameters, and save the smaller version instantly. Fast, on-device processing preserves your privacy.

1
Import document

Select a PDF or drag and drop it into the workspace.
2
Choose level

Select recommended settings or customize compression intensity to match your target file size.
3
Save compressed PDF

Save the optimized PDF document directly to your device.

Document.pdf

0 KB — 0 pages

Original Size: 0 KB

Estimated Size: ~0 KB -65%

Compression works by rendering pages as images. In the output file, document text will be preserved visually but won't be selectable.

Compression Settings

Compression Level

High Compression 96 DPI - ~80% smaller Medium Compression Recommended 150 DPI - ~60% smaller Low Compression 200 DPI - ~40% smaller

Good quality (150 DPI, ~60% smaller), ideal for general documents and text scans.

Privacy Note: All rendering and compression algorithms run locally inside your browser's execution thread. Your document never leaves your machine.

Compress PDF Files Online

How to Compress a PDF Online

Import document

Choose level

Save compressed PDF

Document.pdf

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