The goal of PDF compress is usually to make a PDF smaller so it can be emailed, uploaded or stored more efficiently. The best settings depend on what the document contains and how it will be used.
Why PDFs become large
Scanned pages, high-resolution photographs, embedded fonts and duplicated images can increase file size. Text-only PDFs are often smaller. If the file is large because it contains many pages, removing pages you do not need may help more than aggressive compression.
Compress a PDF safely
- Keep an original copy.
- Open a trusted PDF compression tool.
- Select a suitable compression level.
- Download the compressed file.
- Compare the file size and inspect small text, images, charts and signatures.
Balance quality and size
Stronger compression may blur scanned text or photographs. If the PDF is for printing, archiving or official submission, prioritize legibility. If a website sets a maximum upload size, use that limit to guide your choice.
Privacy and reliability
Review file-handling policies before uploading sensitive documents. Keep the original until the compressed version has been checked and accepted by the receiving system.
Related GetConvertor PDF tools
Try the PDF Editor for document changes, the PDF Splitter to extract pages, and the PDF Demerger to separate a PDF into smaller files.
Conclusion
PDF compression works best when you reduce unnecessary data while preserving the details readers need.