Are my PDF files uploaded while compressing?

No. Compression runs in your browser, so the original and compressed files stay on your device.

Which compression mode should I choose?

Use Lossless clean for text PDFs, forms, or searchable documents. Use Scanned document for image-heavy scans when smaller size matters more than preserving editable text.

Why did my PDF not become smaller?

Some PDFs are already optimized. Try scanned-document mode, lower the image quality, or reduce resolution if the file is mostly scanned pages.

PDF Tools

Private PDF Compressor

Choose lossless clean or scanned-document compression to reduce PDF size locally for email, uploads, and privacy-sensitive files.

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Try It Online

Reduce PDF file size for easier sharing.

Compression mode

Lossless clean rewrites the PDF structure without rasterizing pages.

More Tools In This Category

Browse more tools in PDF Tools.

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Private Word to PDF
Convert DOCX files into PDF documents.
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Convert PDF files into DOCX documents.
Secure PDF Merger
Combine multiple PDF files into one document.
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Private PDF Compressor
Reduce PDF file size for easier sharing.
PDF Page Splitter (Local)
Split a PDF by pages or custom ranges.
Instant PDF Rotator
Rotate PDF pages in bulk.
PDF Page Extractor
Extract selected pages from a PDF file.

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