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Now that you have a rough idea about the document sizes, it will make more sense when we explain the best way to compress pdf. With specially designed services allowing to compress pdf keep quality, reaching the required size becomes easier than ever. Below is a detailed explanation for the usage of our online pdf compressor

  品質を落とさずに PDF を圧縮

As already mentioned, usually compressing means a decrease in the quality of the image, whether it is in a document or by itself. However, some of the services still manage to save the best possible quality through specially developed algorithms. So, when you need to compress a large pdf while maintaining high quality images, do not hesitate to use Zonepdf


Large presentations or reports that cannot be sent by the majority of data storage services can cause great troubles in terms of time efficiency and smooth process running. Situations like these are known by the majority of employees, students, and freelancers, as usually file size is considered at the last moment. By knowing some tricks it is possible avoiding foot-dragging and driving efficient high quality pdf compression


Whether you want to compress large or a medium-sized file, the procedure is just the same. However, it usually takes a few seconds more for processing of larger files by the facility, so a bit of patience is needed, since the ultimate reward is a high quality compacted file which has been processed securely

Try using Zonepdf to convert JPG to PDF online, split PDF, or merge PDF files too!