On top of that, our servers automatically delete uploaded files after an hour of processing. Secure and Free PDF Compressingįrom the moment you upload your file to when you download your compressed PDF, we’ll make sure that it goes through the utmost secure processing environment. Just head over to the PDF Converter, drag and drop the file, and we’ll take care of the rest. Once you upload one of these documents, we’ll first turn your file into a PDF so our compressor can shrink the file, as described above.ĭon’t think we’ll just leave you hanging with a PDF file when you wanted a compressed Word document! Of course, we can convert the compressed PDF back to its original format. Compress Non-PDF FilesĬompressing your PDFs isn’t all we can do, though! Our online PDF compression tool can also reduce the file size of other file types, including JPG, Word, PPT, and Excel. Therefore strong compression, a Pro feature, may result in minimal quality losses. However, the stronger the compression level, the more distortion may occur in the compressed document, especially in files containing many images. With basic compression, your file won’t be discernible from the original except by size. To choose this option, choose "Re-size video" from "Advanced Settings" above.Using the best technology on the market, we’ll reduce your PDF documents’ size while maintaining the highest file quality. For example, if you have a 4K (4320p) video but your target device is 1080p, you can downsize the video to fit 1080p and save file size. 4: Make Video Size Smaller (Re-Size)Ĭhoosing a smaller video resolution (dimensions) can also save file size. For more info: read video bitrate control. To choose this option, select "By Max Bitrate" from the "Video Compress" dropdown. Select this method if you are using the video in a streaming application where you want to control the streaming bandwidth rate. The quality is set by CRF (constant rate factor). This method allows you to set the max bitrate for given video quality. This is the default video compression method used. Increase the target size if you need better quality. To overcome this, start with a decent size (as a percentage of original), then test for video quality. The downside is you don’t know how the target size will affect video quality. The pros of this method are, you can achieve a certain target size. For example, if you set it to 60% for a 1Gb file, we will attempt to make your compressed file size 600Mb or less. This method allows you to set a target file size for your video as a percentage of the original size. As a Percentage of the Original Size (Default) If you prefer a lower file size over encoding time, choose a slower preset. Choosing a slower preset allows better optimization (lower bitrate/file size) for a given video quality level. Preset: Presets refers to the video compression speed. Higher values mean more compression (reduced file size), lower values mean better quality (but bigger file size). For the H264 encoder, possible CRF values range from 0 to 51. To do that, it uses different compression levels on different frames. By Video QualityĬRF (Constant Rate Factor): CRF method attempts to keep a constant perceived video quality. We provide 4 settings related to both methods. You can either optimize the bitrate or resize the video to a smaller size. There are two main methods to compress a video.
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