PDF Compress (Reduce Size)

Overview

PDF Compress reduces the file size of your PDF by re-encoding images and streamlining the document structure. This is useful when you need to meet size limits for email, submissions, or storage. The tool runs in your browser, so your document is never sent to a server. You can typically achieve a noticeable size reduction while keeping text and graphics readable. For best results, start with a copy of your file and compare the output; if quality drops too much, try a less aggressive setting or use the target-size tool for a specific limit.

When to use it

• • When you need a quick result without installing software.
• • When you must keep files on your device for privacy.
• • When you want a predictable output for reuse or sharing.

How it works

Your file is processed in the browser. The workflow is deterministic and optimized for common document patterns.

Best practices

• • Start with a small sample to confirm output expectations.
• • Keep file names simple to avoid OS-specific edge cases.
• • If results look off, try the tool again after a page refresh.

Common mistakes

• • Uploading encrypted or corrupted files without preparing them first.
• • Assuming a tool will fix formatting issues outside its scope.
• • Closing the tab before the download completes.

📥 Inputs & Outputs