About Free PDF Compressor
How to Compress a PDF Online for Free
- Click Select PDF or drag & drop your file into the box above.
- Type your target size (e.g. 50, 100, 200) and pick KB or MB.
- Choose Reduce (compress) to shrink the file, or Increase (pad) to grow it.
- Click the button and download your resized PDF — done in seconds.
Why Use Free PDF Reducer?
- 100% Free & Unlimited — compress or increase as many PDFs as you want, no signup, no watermark.
- Private by Design — your PDF is processed locally in your browser and never uploaded to any server.
- Precise Target Sizing — shrink or grow a PDF to an exact size in KB or MB, not just a vague "low/medium/high" setting.
- Works Everywhere — any modern browser on Windows, Mac, Linux, Android, or iOS.
- Dark & Light Mode — comfortable to use day or night.
Frequently Asked Questions
How do I reduce a PDF to a specific size like 50KB or 100KB?
Select or drag your PDF into the tool, enter your target size and unit, choose "Reduce (compress)", then click Compress PDF. It automatically finds the best quality that fits your target.
Is this PDF compressor free and unlimited?
Yes — completely free, with no signup, no watermark, and no limit on how many files you compress.
Do my files get uploaded to a server?
No. All processing happens locally in your browser. Your PDF never leaves your device.
Can I also increase a PDF's file size?
Yes. Switch the mode to "Increase (pad)", set your desired target size, and the tool pads the PDF up to that exact size while keeping it a valid, openable file.
Free PDF Reducer — Reduce or Increase PDF Size Online
Compress a PDF to an exact KB/MB target, or increase its size — 100% free, unlimited, and processed entirely in your browser. Your files never leave your device.
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