Cara Compress ukuran pdf di linux ubuntu 16.04

Native solutions

• Ghostscript is a great tool for compressing PDFs. In our tests it delivered the best compression ratio. Simply run:

Use the following ghostscript command:

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

• -dPDFSETTINGS=/screen lower quality, smaller size.
• -dPDFSETTINGS=/ebook for better quality, but slightly larger pdfs.
• -dPDFSETTINGS=/prepress output similar to Acrobat Distiller "Prepress Optimized" setting
• -dPDFSETTINGS=/printer selects output similar to the Acrobat Distiller "Print Optimized" setting
• -dPDFSETTINGS=/default selects output intended to be useful across a wide variety of uses, possibly at the expense of a larger output file

• Run the Shrinkpdf script:

  $ ./shrinkpdf in.pdf out.pdf

  The script is almost same as the explicit gs command above. However, it has one advantage – it does an output file size check.
• qpdf:  A cmdline program that does structural, content-preserving changes to PDF files. The simplest way to invoke it:

  $ qpdf --linearize input.pdf output.pdf

  However, this didn’t provide a very optimized output in our tests.
  To install qpdf on Ubuntu, run:

  $ sudo apt-get install qpdf

• smpdf is a commercial closed source tool. However, there is an evaluation copy available for download which adds an unlicensed version mark to the modified document. Usage:

  $ smpdf in.pdf -o out.pdf