Compress PDF to Specific Size (KB) Online

 

Compress PDF

Reduce your PDF file size to a specific target — type a size in KB or MB, pick a preset, and download the compressed file instantly.

Step 1 — Upload PDF

Drop your PDF file here

or click to browse — single PDF file

Any PDF · Any size

—

—

—

original

Step 2 — Set Target Size

Target File Size

Quick Presets

100 KB 200 KB 500 KB 1 MB 2 MB 5 MB 10 MB

0 Target Original

Step 3 — Compression Mode

🎯 Auto (Recommended)

Iteratively adjusts quality to hit your exact target size.

📱 Screen Quality

72 dpi equivalent. Best for on-screen viewing only.

📖 eBook Quality

150 dpi equivalent. Good balance of size and clarity.

🖨️ Print Quality

300 dpi equivalent. Larger size but high-fidelity output.

Step 4 — Compress

Compressing...0%

-

Original

-

Output Size

-

Saved

-

Time

PDF Compressed Successfully!

Smart auto compression — Auto mode runs multiple passes, adjusting JPEG quality and render scale to get as close as possible to your target size.

100% private — everything runs in the browser. Your PDF is never sent to any server.

Note: compression works by re-rendering pages as images. The output is always ≤ target size but exact match depends on the PDF's content complexity.

Processes locally · No data uploaded · Free to use