Free PDF Compressor
Reduce the file size of your PDFs online for free, keeping your data completely secure locally.
Drag & drop a PDF file here, or click to select
Lower quality = smaller file size, but blurrier text/images.
How to Compress a PDF File for Free
Reduce the size of your PDF files without compromising too much on quality. Our tool re-renders the PDF pages as optimized images to achieve maximum compression, all securely within your browser.
- Upload Your PDF: Drag and drop your PDF file into the upload area, or click to select it.
- Choose Compression Quality: Use the slider to select your desired image quality. "Recommended" offers a good balance, while "Max Compression" will result in the smallest file size.
- Compress PDF: Click the "Compress PDF" button and wait for the process to complete. For large files, this may take a moment.
- Download Your File: Your compressed PDF will download automatically, with the new, smaller file size displayed.
Key Features of Our PDF Compressor
- Adjustable Quality: You have full control over the compression level, allowing you to balance file size and visual quality.
- Significant Size Reduction: By converting pages to optimized JPEGs, this tool can drastically reduce the size of PDFs, especially those with many images.
- 100% Secure & Private: Your PDF is processed entirely on your computer. It is never uploaded to our servers, ensuring your confidential documents remain safe.
- Handles Encrypted Files: If your PDF is password-protected, the tool will prompt you to enter the password to unlock and compress it.
Frequently Asked Questions (FAQ)
Will compressing my PDF reduce its quality?
Yes, this method of compression will reduce the visual quality of the document because it converts vector text and images into compressed raster images (JPEGs). Text may become slightly less sharp. It's best for documents where file size is more important than perfect print quality.
Why can't I select text in the compressed PDF?
Because the compression process converts each page into an image, the text is no longer selectable as it becomes part of that image. The document will look the same, but the underlying text data is not retained.