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Compress PDF

Reduce the size of your PDF.

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How To Compress PDF Files

Below we show how to shrink one or multiple PDF files to reduce their file size.


Upload your files

Files are safely uploaded over an encrypted connection. Files stay secure. After processing, they are permanently deleted. Click 'Upload' and select files from your local computer.


Compress PDF

Click the 'Compress' button and then 'Download' your compressed PDF. The compression algorithm does the following:

1. Optimizes images.
2. Removes unused fonts and images.

FAQs on Compress PDF

What is Compress PDF tool?

Compress PDF tool is an online service that reduces the file size of PDF documents without significantly impacting the quality of the content. It employs various techniques to compress images, remove unnecessary elements, and optimize the internal structure of the PDF file.

Why should I compress PDF files?

Compressing PDF files offers several benefits, such as reducing file size for easier storage and sharing, improving document load times, saving bandwidth when uploading or downloading PDFs, and optimizing PDFs for web or email distribution.

How does PDF compression work?

PDF compression techniques involve removing redundant or unnecessary data, re-encoding images with more efficient algorithms, eliminating unused resources, and optimizing the internal structure of the PDF file. These processes aim to reduce the overall file size while preserving the visual quality and integrity of the document.

Will compressing a PDF affect its quality?

PDF compression techniques are designed to minimize the impact on the visual quality of the document. The compression algorithms aim to maintain a balance between file size reduction and maintaining the legibility and integrity of the content. However, depending on the compression settings and the nature of the PDF, there may be a slight loss in quality or resolution in certain cases.

Can I revert the compression and restore the original PDF?

Generally, once a PDF file is compressed, it is challenging to restore it to its exact original form. Therefore, it's recommended to keep a backup of the original PDF file before compression if you anticipate the need to revert back to the original version.

Is PDF compression the same as PDF optimization?

PDF compression is a part of PDF optimization. Optimization involves various techniques, including compression, to improve the overall performance and efficiency of PDF files. Compression specifically focuses on reducing file size, while optimization covers a broader range of enhancements.

Will compressing a PDF file affect its digital signatures or form fields?

Compression techniques should not affect the digital signatures or form fields within a PDF file. These elements are typically preserved during the compression process to ensure the integrity and functionality of the document. However, it is always recommended to test the compressed PDF file to confirm that all signatures and form fields remain intact.

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