Creates a new optimized PDF without overwriting the original.
Server-assisted processingThis operation can require temporary server-side processing. Avoid uploading information you are not permitted to process and review the Privacy Policy for retention and handling details.
PDF optimization
Compress PDF
Browser optimization rebuilds PDF structure. Strong image downsampling requires Ghostscript on the server.
How to use Compress PDF
- 1Choose the requested files.
- 2Adjust the available options.
- 3Process and review the result.
- 4Download the finished file.
About this tool
Reduce PDF file size using available server processing. Get Tools Lab keeps the workflow simple, responsive and accessible in modern browsers. Review the result before using it for important work, and keep a backup of original files.
What this tool does
Compress PDF reduces PDF file size by optimizing document structure in the browser or, when available, using server-assisted compression for stronger reduction.
Common use cases
- Reduce a PDF before email or upload
- Optimize reports and scanned documents
- Create a smaller sharing copy
Limitations
- Browser optimization may produce only modest savings when images already dominate file size.
- Server-assisted compression can change image quality and should be reviewed before replacing the original.
Privacy & processing
Server-assisted processing
This operation can require temporary server-side processing. Avoid uploading information you are not permitted to process and review the Privacy Policy for retention and handling details.
Common ways people use Compress PDF
People looking for this tool may describe the task as compress pdf, compress pdf online, free compress pdf, compress pdf tool or compress pdf free online. These phrases describe the same or closely related workflow; use the controls above for the supported operation.
Example results
If the result does not look right
- If the output is not smaller, the PDF may already be optimized.
- Keep the original and visually inspect compressed pages before important use.
Last tested: 2026-09-03
V50 deterministic render, static JS/control audit and responsive layout checks
- ✓ PHP page renders without a fatal/parse error
- ✓ Primary controls and labels are present
- ✓ Invalid or missing input has a recoverable error path
- ✓ Responsive layout checked at 390px and 1365px in V50 local QA
- ✓ Keyboard focus and status region are available
Trust, methodology & corrections
Get Tools Lab documents how tools are designed, reviewed and corrected. We do not claim external certification unless it is explicitly documented.
Frequently asked questions
Is Compress PDF free to use?
Yes. It is available without an account or subscription.
Is my data private?
Get Tools Lab uses browser-based processing whenever the feature supports it. Avoid entering highly sensitive information into any online utility.
Does it work on mobile?
Yes. The interface is responsive in modern mobile and desktop browsers.
Your feedback
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Recent downloads
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