Free PDF Compressor
Apply lossless structural compression to a PDF without uploading it.
PDF Compressor
Enter a value to begin.
How to use this pdf compressor
- Choose a PDF and optimize its internal object structure; a download is offered only when the result is smaller.
- Check the inputs and preview, then use the primary action.
- Download, copy or use the result shown by the tool.
How the result is calculated
The document is parsed and rewritten with compressed object streams. Images are not downsampled, so an already optimized or image-heavy PDF may not shrink.
All calculation and transformation work happens in this browser tab. No entered value is sent to an Noler Tools application server.
Important limitations
Results are provided for convenience and should be checked independently before an important decision. A format or checksum result never authenticates an identity, document, account, licence, vehicle or registration.
Frequently asked questions
Is this pdf compressor free?
Yes. It is free to use and does not require an account.
Does Noler Tools save my input?
No. The input and result remain in temporary browser memory and are not uploaded or saved by this site.