Compress PDF

Cloud Processing

Compress PDF files online, significantly shrinking file sizes while keeping quality. Three compression levels available, suitable for email and uploading.

Click or drag & drop PDF file here

Supports .pdf format, up to 50MB

Compression Options

Using 256-bit SSL encryption. To protect your privacy, all files will be automatically and permanently destroyed from servers within 1 minute after compression.

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Features

  • Provides three compression qualities: Low (High Quality), Medium (Recommended), High (Max Compression).
  • Smart compression algorithm successfully shrinks file sizes while maintaining document visuals as much as possible.
  • Compressed PDF files retain original copyable and searchable text properties.
  • Utilizes SSL encrypted transmission, and all files are permanently destroyed post-processing, ensuring privacy and security.
  • Perfectly supports Windows, Mac, Linux, and mobile browsers, no software installation required.

Why Compress PDF?

PDF files are often bulky due to embedded fonts and high-resolution images. When you need to send them via email, upload to websites, or share with others, large file sizes can be inconvenient. The Super Online compress tool helps significantly reduce PDF file size while maintaining acceptable image quality, making file sharing exceptionally fast and easy.

How to Compress a PDF File?

  • Click the dotted area above or drag & drop your PDF file into the upload zone.
  • Pick the appropriate compression quality (Medium compression is highly recommended).
  • Click the "Start Compressing" button, and wait a few seconds to automatically download the compressed PDF file.

Three Compression Qualities Explained

Low Compression: Slight compression on images. Text and vector graphics unaffected. Ideal for formal documents requiring pristine quality.
Medium Compression (Recommended): Best balance between file size and quality. Suitable for most everyday office usages.
High Compression: Maximum file size reduction, ideal for situations prioritizing rapid transmission where visual quality is secondary.

Frequently Asked Questions

Will the PDF quality degrade after compression?

It depends on the compression quality you choose. Low compression barely impacts quality; Medium is virtually indistinguishable to the naked eye; High provides maximum shrinkage with some visual degradation.

How much can it be compressed?

Compression ratio depends on the PDF content. PDFs containing large high-res images show the most substantial reduction, potentially shrinking by over 50%. Text-only PDFs have less compress-ability.

Can I still copy the text after compressing?

Absolutely! PDF compression mainly targets resources like imagery. Text content is completely unaffected, and you can still copy and search text normally.

Is my file perfectly secure?

Completely secure. All files are securely transmitted via SSL encryption and will be permanently deleted from our servers within 1 minute of completion. We neither store nor view your documents.