Compressing PDF Files without Degrading Document Quality

Reduce the file size without compromising filequality and make archival and file transfer much more easier. SwifDoo PDF freesyou from worries about file size limit.

Main Benefits of PDF Compression

With PDF compression, you can enjoyfaster transfer speed and load times when sending or receiving files: PDFs as email attachments will slow down the servers and compressing PDFs into small files is a simple resolution; and storage efficiency: cut down the amount ofserver space with compression.

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No Data Loss and Reduced File Quality

SwifDoo PDF adopts lossless compression. This technology optimizes bits and bytes by identifying and eliminating statistical redundancy to reduce overall file size. No information during compression is lost. The compression process only targets redundant data.

How to Optimize the File Size with SwifDoo PDF

Open a PDF document withSwifDoo PDF

Click the “Advanced”button and select “Compression”

Choose the output fileformat and local folder before hitting the “Start”

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FAQs about Compressing PDF

Q:Which is the best PDF compression app?

  • 1. PDF Compressor (online)
  • 2. iLovePDF (Windows, Mac, online)
  • 3. Adobe Acrobat (Windows, Mac)
  • 4. Soda PDF (Windows, Mac, online)
  • 5. Free PDF Compressor (Windows)
  • 6. Preview (Mac)
  • 7. SwifDoo PDF (Windows)

Q:Is it safe to compress PDFs online?

  • Generally speaking, it is safe to compress your PDF files online. Most of online service providers keep your files at their servers for 1 or two hours. When the time expires, your documents will be automatically deleted from their servers. However, for confidential files with sensitive information, it is not suggested to use online services.

Q:How do you resize a PDF file with Adobe Acrobat ?

  • 1. Launch Adobe Acrobat: clickon the "Optimize" button and then select the files you need to reducethe size;
  • 2. When you see many optionsat the top of the page, hit the "Reduce File Size";
  • 3. After a new window popsout, you are allowed to compress images, change their color settings, and setother options. Don't forget to tick the "Optimize images only if there isa reduction in size" - so that your images will not lost their quality.