Online PDF Compressor

Reduce PDF size while maintaining original document quality

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Compression level

JPEG Compression level

5
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Output file name without extension
5%

Read, convert, merge, split documents

Compress PDF file online

Quickly reduce the size of a PDF by optimizing its internal content. Effortlessly make a PDF smaller while preserving all data. You can specify the level of PDF compression in settings: low, medium and high. This Free PDF Size Reducer is at your service 24/7.

Work with large PDF documents effectively. Our Online PDF Compressor uses a group of lossless document compression algorithms to produce accurate and compact PDF output. Deleting unnecessary PDF data always brings the best result.

Shrink the size of PDF file online

PDF files can quickly grow in size and become huge. We have a solution to your problem of large PDF documents that are starting to get out of hand. PDF compression is the process of transcoding Portable Document data with fewer bits. Just use this Online PDF Compressor and shrink the size of large PDF files in seconds.

PDF Compression for free

After a PDF is compressed, its structure, content, and visual style will be exactly the same as the original. You won't notice the difference because this tool implements lossless PDF compression, which results in the optimization of internal data structures and makes PDF file smaller without changing user-level data.

PDF Size Reducer is browser based and works on all operating systems including Windows, Linux, macOS and Android. You do not need to install any software. Online PDF compression service is easy to use and completely free.

How to compress PDF online

  1. Upload PDF files to compress.
  2. Specify parameters and press the button to compress PDF.
  3. Download the compressed PDF files for instant viewing or email the link.
  4. Output files will be deleted from our servers after 24 hours and download links will stop working.

Other Compression Online

Compress other documents

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