Reduce PDF file size
Compress PDF
Compress a PDF by percentage or target size, compare actual results and download with a name based on your original file.
Browser processing · no file upload to our server
Drag a PDF here or click to upload
1 PDF · up to 50MB · 100 pages
Processed in your browser · no server upload
Actual savings depend on the PDF. Protected documents and PDFs with forms, signatures, attachments or scripts are not supported.
How to use Compress PDF
Set a 25%, 50% or 75% reduction or a target such as 1MB, 2MB or 5MB. Supported embedded images are optimized while text and page structure are kept. Files stay in your browser.
Recommended workflow
- 1.Choose one PDF and check its original size.
- 2.Set the reduction or target size and output name.
- 3.Compress, check the actual size and target status, then download.
Compress PDF output checks
- Check the first and last pages for missing content.
- Verify page order and orientation.
- Open the downloaded file and keep your originals separately.
Processing method
Set a 25%, 50% or 75% reduction or a target such as 1MB, 2MB or 5MB. Supported embedded images are optimized while text and page structure are kept. Files stay in your browser.
Known limitation: Actual savings depend on the PDF. Protected documents and PDFs with forms, signatures, attachments or scripts are not supported.
How files and inputs are handled
This tool processes files and inputs in the current browser. OneClickTool does not receive or store the original content on its own server.
Frequently Asked Questions
Is the selected reduction guaranteed?
The displayed size is a target. Actual results depend on document contents and previous optimization. A smaller result can still be downloaded if the target is not reached.
Will searchable text be kept?
Only supported embedded images are optimized; pages are not converted to images. Existing text and page structure are kept. PDFs with forms, signatures, attachments or scripts are not supported.
Are PDF files uploaded?
No. Reading, compression and downloading run in your browser. The document and file name are not uploaded to a server.
Supported Scope
1 PDF · up to 50MB · 100 pages. Keeps text and page structure while optimizing supported embedded images.
PDFs with forms, digital signatures, attachments or scripts are not supported to preserve document features. Protected PDFs are not supported. Choose an unprotected copy.
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