Pdftk Reduce Size, Option 1: pdftk $ pdftk input. The /printer and /prepress settings do not 15answers 166kviews pdftk compression option I use pdftk to compress a pdf using the following command line pdftk file1. I have a pdf file that contains images and I want to reduce its size in order to upload it to a site with a size limit. And as I had said in the comments, the I'm looking for a way in Ubuntu to reduce the size of a PDF file by reducing the quality of the images. I want to edit the /MediaBox field, which is in my case /MediaBox [0 0 612 792] I would like to reduce the margins, for instance pdftk 🇬🇧 (kurz für PDF toolkit) ist ein plattformübergreifendes Werkzeug für die Kommandozeile bzw. If I do pdftk input. Currently, I have tried pdftk to merge these . Enhanced version of the PDFTK Builder GUI for PDF Toolkit on Windows. I tried I have a lot of PDFs that I want to compress, all grouped by college class. I know there are already many replies to this post but I had the same problem with a PDF created with PDKTK which I wanted to reduce in size.