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PDF compression without losing quality

Compress PDF files, reduce file sizes and prepare documents efficiently for sharing with PDF-compress.

Check Icon Losslessly compress contained images
Check Icon Application of MRC Optimization Technology
Check Icon Remove blank pages, unnecessary content, and annotations
Buy now
Professional Edition (24.90 USD)
Download
14-day trial version

Compress PDF quickly and efficiently for more space and less bandwidth!

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PDF-compress: Compresses your PDF files reliably and in the best possible way

The PDF format is ideal for presenting and sharing complex texts, diagrams, graphics and forms. However, PDF files are therefore often very extensive, which in turn is actually a knockout criterion for sharing.

With PDF-compress you can optimize your PDF files so that they do not take up more storage space than absolutely necessary. Depending on the structure and content of the PDF document, compression rates of up to 95% can be achieved. In a test with over 1,000 randomly selected PDF files from different sources, an average compression rate of almost 50% was achieved.

PDF-compress uses different approaches for compression. For example, images contained in the document can be compressed losslessly, special optimization technology (MRC) can be applied, and blank pages and annotations can be removed from the PDF structure. Optionally, the image quality can also be reduced in several stages and an optimization for the display on the web can be carried out.

Reliable PDF Compression

Particularly when sharing documents, the PDF format has established itself as the standard in recent years. Today, it is used not only by companies but also by numerous private individuals who, for example, want to send letters to authorities. The PDF format can be used for sharing various types of content. It is particularly suitable for forms, graphics, and even diagrams. However, one drawback of most PDF files is their size. With PDF compress, you can easily compress your PDF files as needed. Our modern software guarantees easy handling and ensures that you can reduce the file size without much effort.

Use of Modern Technologies

PDF compress is modern software that meets the extensive requirements for PDF compression. You can rely on a high level of security. The compression with PDF-Compress is largely lossless. Compression rates of up to 95 percent can be achieved. The decisive factor is always how your PDF document is structured and what content it contains. Although our software impresses with its ease of use, it is based on the use of modern technologies. This allows us to guarantee you a high level of security.

Optimization without changing the Appearance

To compress a PDF file, our program PDF compress works with various approaches. On the one hand, it ensures that any empty pages and unnecessary characters that may be present are reliably removed from PDF files, and the structure of the PDF document is optimized without changing the presentation. On the other hand, it is also possible to specifically reduce the size of existing images. Furthermore, you can use the software in conjunction with various Windows versions. Try PDF compress for free now to minimize your file sizes and optimally prepare documents for sharing and archiving.

Compress PDF for free - 14 days-trial

Decide to have your PDF file compressed now and experience how easy professional file optimization can be with PDF compress. The advantages are immediately apparent, especially when sending larger documents by e-mail or using cloud storage: shorter transfer times, lower storage requirements and smooth workflows. Download the 14-day trial for free and see for yourself the power of our software. See for yourself how quickly and easily you can save space and get the full document quality at the same time – compress PDF now for free.

Buy now
Professional Edition (24.90 USD)
Download
14-day trial version
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Technical Specifications
Product PDF-compress
About Product
Version:
1.012
License:
14-day trial version
Edition:
Standard
Supported Languages:
English German Spanish Italian Greek Russian Arab
Release Date:
November 1, 2025
System Requirements
Processor:
Intel compatible
Memory:
2 GB minimum (4 GB recommended)
Hard Disk:
50 MB
Operating Systems:
(32-bit & 64-bit)
Windows 11, Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2022, Windows Server 2016/2019, Windows Server 2012, Windows Server 2008

PDF-compress for Your Use Case

Compress PDF for Sharing – Reduce File Size Without Quality Loss +

Do you need to send a large PDF file via email, upload it to a website, or share it through cloud services, but the file size exceeds the allowed limit? With PDF-compress from ASCOMP, you can effectively compress PDF files and significantly reduce the file size – without compromising image quality. The software reduces PDF size through intelligent recompression of images and removes redundant data, while keeping your documents professional and maintaining original quality.


Why Compress PDF Files?

PDF documents with many images, high-resolution graphics, or scanned pages can quickly grow to several megabytes or even hundreds of MB. Such large PDF files often cannot be sent via email (most email providers limit attachments to 25 MB), require long upload times, and consume unnecessary storage space. Through PDF compression, you can reduce file size by up to 90% without affecting readability or professional presentation.

PDF-compress offers a crucial advantage: You can reduce PDF size without touching the original image quality. The software recompresses images using modern algorithms (JBIG2/JPEG2000), removes duplicate resources, and optimizes the PDF structure. This gives you a compressed PDF file that can be easily shared – while maintaining visual quality.


Common Use Cases for PDF Compression

  • Email Sending: Reduce large PDF attachments to a sendable size. Presentations, reports, or documents with many images can be easily sent via email after compression, without exceeding the size restrictions of Gmail, Outlook, or other email services.
  • Website Upload: Smaller PDF files mean faster loading times for your website visitors. Compress product catalogs, brochures, or manuals before offering them for download on your website.
  • Optimize Cloud Storage: Save valuable storage space in Dropbox, Google Drive, or OneDrive by compressing PDF documents before upload. Especially with extensive document archives, the savings add up.
  • Mobile Sharing: Smaller PDF files can be sent faster via WhatsApp, Telegram, or other messenger services and require less mobile data when downloading.
  • Archiving: Compress old invoices, contracts, or documents for long-term archiving and reduce required storage space by up to 90%.

How to Compress PDF Files with PDF-compress – Without Quality Loss

Compressing with PDF-compress is simple and requires no technical knowledge. Follow this step-by-step guide:

Step 1: Select PDF Files
Launch PDF-compress. In the first step, select the PDF files to be compressed. Navigate to your documents and select one or multiple PDF files. The software displays at the bottom how many files have been selected. Click "Next".

Step 2: Configure Compression – Preserve Quality
In the configuration step, activate the following options for maximum compression without quality loss:

  • Recompress images: This option recompresses images using modern, more efficient algorithms
  • Adjust image quality: DO NOT activate! Leave this unchecked to fully preserve the original quality of the images
  • Use JBIG2-/JPEG2000 compression: These modern compression methods achieve better results than older methods while maintaining quality

Additional optimizations for even smaller files:

  • Optimize for web view: Optimizes the PDF structure for faster loading in browsers
  • Pack document & fonts: Compresses embedded fonts and metadata

Click "Next" after configuring the settings.

Step 3: Set Output and Compress
In the final step, specify where the compressed PDF files should be saved:

  • Save with different file name: Appends text like "[compressed]" to the original file name – so you keep both versions
  • Save in different folder: Choose a destination folder for the compressed files
  • Save in new PDF format: Saves in PDF 2.0 for optimal compatibility

Click "Compress" – PDF-compress processes your documents within seconds and displays the achieved size reduction. Depending on the source file, you can reduce PDF file size by up to 90% while fully preserving image quality.


14-Day Trial Version Without Restrictions

You can test PDF-compress for 14 days without any restrictions. All features are fully available during the trial period. The software works completely locally on your computer – your PDF documents are not uploaded to the internet, ensuring data privacy and security.

Unlike online services to compress PDF files, where you must upload your files to third-party servers, with PDF-compress you maintain full control over your data. This is a crucial advantage especially for confidential documents, contracts, or business records.


For Businesses: Professional Edition

For commercial users, the Professional Edition offers the ability to use the software commercially as well as extended technical support. Ideal for companies that regularly need to compress and reduce PDF documents.


Additional Benefits of PDF Compression with PDF-compress

  • No Quality Loss: Through intelligent recompression, texts remain sharp and images in original quality – file size shrinks, quality remains.
  • Batch Processing: Compress multiple PDF files in one go – saves time with large document volumes.
  • Fast Processing: Even large PDF files with hundreds of pages are compressed within seconds.
  • Easy Operation: The clear wizard guides you through all steps – no complicated settings required.
  • Compatibility: The compressed PDF files can be opened with all common PDF readers (Adobe Acrobat, browser PDF viewers, mobile apps).
  • Offline Use: No internet required – compress your PDFs anytime, anywhere, without having to upload your data.
  • Data Privacy: All data remains local on your computer – no cloud upload, no risk of data leaks.

Whether you want to send a large PDF file via email, optimize PDF documents for your website, or save storage space – with PDF-compress you reduce your PDF files professionally and quickly. Download PDF-compress now and test the software for 14 days without restrictions!

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