pdf station
PDF Compressor
Compress a PDF to reduce its file size. The final result depends on the source document and the selected processing settings. Formats: PDF to PDF.
- Accepted input
- Result
Active conversion station
Compress PDF
Reduce PDF file size
What does Compress PDF do?
Compress PDF is a browser-based pdf tool that lets you reduce pdf file size. It accepts PDF input and produces PDF. The file is checked against the displayed input rules before processing, and conversion starts only after you select Start Conversion.
How to Compress PDF Online — 3 Simple Steps
Upload your file
Drag and drop or use the file picker. The tool shows its accepted input types.
Choose your settings
Select output format, quality, and any tool-specific options.
Collect the result
Click Convert and download the processed file when it is ready.
Why Use ConvertFast's Compress PDF?
- Dedicated tools cover merge, split, compression, OCR, and passwords
- Password fields appear only for encrypt and decrypt operations
- Split ranges are required before that request can start
- Multiple merge inputs remain visible before processing
- Files larger than 500 MB are rejected before upload
Frequently Asked Questions
Can I use Compress PDF without an account?
Yes. The current ConvertFast Compress PDF opens without registration. The interface rejects files larger than 500 MB before a conversion request is sent.
What happens to my file when I use Compress PDF?
The selected file is sent to the conversion service only after you start the operation. The browser stores job metadata only when you choose to save it to local history. Review the privacy policy before processing sensitive material.
Which formats does Compress PDF support?
Compress PDF accepts PDF input and produces PDF. The available settings are shown in the converter before processing starts.
Ready? It's Free.
No account required. Input rules appear before you upload.
Open Compress PDF Tool