![]() Depending on the document source, you might want to reduce the color depth ( -depth argument).įor my other, pdfsizeopt-based answer, see here. I was able to achieve great compression ratios for scanned/photographed documents (depending on the settings). You have the choice between BZip, Fax, Group4, JPEG, JPEG2000, Lossless, LZW, RLE or Zip as alternate compression methods (some only allow b/w images). jpeg compression might not be the best choice due to compression artifacts. For jpg it is between 1 to 100 with 100 the best quality, but lowest compression Higher pixel densities increase quality and size -density: the pixel density in dpi (e.g.If you have a pdf with scanned images, you can use convert (ImageMagick) to create a pdf with jpeg compression (You can use this method on any pdf, but you'll loose all text informations).įor example: convert -density 200x200 -quality 60 -compress jpeg input.pdf output.pdf The exact settings for each of these, including their DPI values, are shown in the dozens of options in this table. /default selects output intended to be useful across a wide variety of uses, possibly at the expense of a larger output file./prepress selects output similar to Acrobat Distiller "Prepress Optimized" (up to version X) setting./printer selects output similar to the Acrobat Distiller "Print Optimized" (up to version X) setting./ebook selects medium-resolution output similar to the Acrobat Distiller (up to version X) "eBook" setting./screen selects low-resolution output similar to the Acrobat Distiller (up to version X) "Screen Optimized" setting.Presets the "distiller parameters" to one of four predefined settings: Reference: : Controls and features specific to PostScript and PDF input -dPDFSETTINGS=/default selects output intended to be useful across a wide variety of uses, possibly at the expense of a larger output file.-dPDFSETTINGS=/printer selects output similar to the Acrobat Distiller "Print Optimized" setting ( 300 dpi).-dPDFSETTINGS=/prepress output similar to Acrobat Distiller "Prepress Optimized" setting ( 300 dpi).-dPDFSETTINGS=/ebook for better quality, but slightly larger pdfs.-dPDFSETTINGS=/screen lower quality, smaller size.dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf Need a high volume, server based digital document conversion and compression solution? Try PDF Compressor!Īdvanced Optimization vs.Use the following ghostscript command: gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook \ It utilizes the default settings of Advanced Optimization.) (Note: Reduce File Size is the part of Advanced Optimization function. It utilizes the default settings of PDF Optimizer.)įor Foxit PDF Editor v10 and later, please go to File> PDF Optimizer, select Reduce File Size or Advanced Optimization for compressing PDF file. (Note: Reduce File Size is the part of PDF Optimizer function. ![]() You may download it from Foxit website:Īfter the installation, please do the followings:įor Foxit PDF Editor versions prior to V10,please go to File, select Reduce File Size or PDF Optimizer for compressing document. Please try again: Ģ) PDF Optimizer feature in Foxit PDF Editor software: Foxit PDF Editor is free to try out for 14 days. Currently there are two optional ways to compress a PDF:ġ) Online Foxit PDF Editor: If you’re using it but you failed, please try to compress again.
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