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Compress PDF to Exact Size (MB)

Pick a PDF and choose your target size (e.g., 2 MB or 0.5 MB). Processing happens entirely on your device.

Drop PDF to Compress
or click to select
Use 0.2 for 200KB
Lower DPI = smaller file

Note: This tool rasterizes pages to reduce size. Text will no longer be selectable in the output.

Original Size
—
Target Size
2 MB
Reduction Ratio
—
Status
Waiting for file…

Tip: If the result is still larger than your target, try lowering the DPI to 96 or 72.

How to Compress PDF to a Specific Size Online

Many upload portals for jobs, visas, or universities have strict file limits (e.g., "Max 2MB" or "Under 500KB"). Most PDF compressors simply offer "High," "Medium," or "Low" compression, leaving you guessing the final size.

The ToolShelf PDF Resizer lets you define the exact megabyte (MB) limit you need. It intelligently adjusts the quality and resolution until your file fits the requirement.

Why use a Client-Side Compressor?

Security is the main reason. Unlike other tools that upload your documents to a cloud server for processing, ToolShelf processes your PDF locally in your browser using WebAssembly.

  • Privacy: Your sensitive contracts, bank statements, or ID documents never leave your device.
  • Speed: No upload or download times. Large files process instantly.
  • Unlimited: No limits on the number of files you can resize.

Tips for better compression

If you are struggling to reach a very small size (like 100KB) without making the text blurry:

  • Lower the DPI: Changing DPI from 144 to 96 significantly reduces file size with minimal impact on screen readability.
  • Greyscale: (Coming soon) Converting color documents to Black & White can save 30-50% of space.