Cm Pdf Compress

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Compress PDF totally free and online. No need to worry about privacy and registration. Manage your PDF files online and anonymously. Use Compress PDF tool without email registration. Adobe Acrobat online services let you work with PDFs in any browser. Create and convert PDFs online, reduce a file size, and more. Try Acrobat online for free! PDF documents come in a multitude of page sizes. Online PDFresize helps you change the page size of your PDF and, at the same time, maintain the proportions by scaling the contents as well. In case you would like to resize your PDF documents locally, download PDFresize, install it then open Programs-neeviaPDF and run PDFresize. PDF Compressor is a Windows utility that compresses both text PDF and scanned PDF files and reduces PDF file size from larger than 30 MB to only 1 - 3 MB (Compression Ratio: 10%) fast and easily. This tool allows users to change the compressing value to get better compressed result and content quality.

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

  1. Upload your files

    Files are safely uploaded over an encrypted connection. Files stay secure. After processing, they are permanently deleted.

    Rather not upload your files and work with them offline?
    Try Sejda Desktop. Same features as the online service, and the files never leave your computer.

    Click 'Upload' and select files from your local computer.

    Dragging and dropping files to the page also works.

    Dropbox or Google Drive files

    You can pick PDF files from Dropbox or Google Drive too.

    Expand the 'Upload' dropdown and select your files.

  2. Compress PDF

    Click the 'Compress' button and then 'Download' your compressed PDF. Or, click on the 'More options' button for advanced settings.

    The compression algorithm does the following:

    1. Optimizes images
    2. Removes unused fonts and images
  3. Configure image quality

    Images are optimized and saved with a JPEG image quality of 65%.

    That is perfect for most scenarios. But, if your need it you can configure a better quality for the optimized images (even if the PDF size will be larger).

    Under 'image quality' select 'Good' or 'Best'.

  4. Image resolution (PPI)

    Using the standard settings images are optimized to a '72 PPI' resolution.

    Working in a scenario where higher image resolution is needed? Click 'More options', then select '144 ppi', '288 ppi' or '720 ppi' as the maximum image PPI resolution.

  5. Grayscale images

    For lower PDF sizes, when having a lot of images, you can convert images to grayscale.

    Here's an example of a grayscale converted image:

    To use this option select 'grayscale' as 'image conversion'.

  6. Faster PDF compression

    Processing each image takes time. A document with many images will take longer to compress.

    Compressing smaller images has little effect over the overall document size. The larger images are what we want to optimize. Choose 'Faster' and we'll skip smaller images and only compress larger ones, saving time.

File Security Guaranteed


Your PDF files uploaded on the server are deleted when users leave the website. So your data is safe and no one has access to it.

Free PDF Compressor


Our compress PDF tool does not require any sort of payments. All users from all areas can access our tools freely.


Supports Multiple Browsers

Our PDF compressor works on many sought-after internet browsers like Firefox, IE, Chrome, and Safari. It allows you to use it anywhere you want.

Compress Pdf Strong

Compress PDF Tool API for Developers

Compress Pdf Tool Online

We provide API for developers so that they can use our software to compress PDF files.

Low File Size Compression

Our PDF compressor makes the file size extremely light. This makes it very easy to share files online and send them over as attachments.

Cloud based interface

All our tools exist online and anyone with an internet connection can use our tools. There's no need to download any kind of software.

File compress

Different steps on how to reduce PDF size

Useful Tips for reducing PDF size online

  • How to Expeditiously Compress PDF Files Online

  • How to Optimize PDF Size with PDFelement

  • How to Compress Image File Size Online


Feature-rich PDF API for developers