PDF Compressor
Upload a PDF file
Drag and drop your PDF here, or click the button below to select a file
Maximum file size: 100MB. All processing is done in your browser - your files are never uploaded to a server.
Note: This tool works best on PDFs with embedded high-resolution images or unoptimized content. PDFs that are already optimized or contain mostly text may not see significant size reduction.
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About PDF Compression
PDF compression is the process of reducing the file size of PDF documents while maintaining their quality and readability. Our PDF Compressor tool uses advanced algorithms to optimize PDF structure, remove unnecessary metadata, and compress embedded images. This makes your PDF files easier to share, email, and store, without sacrificing document quality.
All processing is done entirely in your browser, ensuring your documents remain private and secure. No files are uploaded to any server, making this tool both fast and privacy-friendly.
Frequently Asked Questions
How does the PDF Compressor work?
Our PDF Compressor works by optimizing the internal structure of PDF files, removing unnecessary metadata, and applying various compression techniques. For PDFs with images, it can also optimize the embedded images to reduce file size while maintaining acceptable quality.
Is there a file size limit?
Yes, the maximum file size is 100MB. This limit is in place because all processing is done in your browser. For very large files, the compression process may take longer to complete.
Will the compression affect the quality of my PDF?
The compression level you choose will determine the balance between file size reduction and quality. Low compression maintains high quality with modest size reduction, while high compression achieves smaller file sizes but may affect image quality in the document. Text quality is generally preserved at all compression levels.
Are my PDF files secure when using this tool?
Yes, all processing is done entirely in your browser. Your PDF files are never uploaded to any server, ensuring complete privacy and security. We have no access to your documents at any point during the compression process.
Why cannot some PDFs be compressed further?
Some PDFs may already be optimized or contain content that cannot be compressed further with browser-based tools. PDFs with mostly text, already compressed images, or special features may see limited compression benefits. Our tool tries multiple compression methods to achieve the best possible results.