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How to convert JPG to PDF

Posted by Alex On April 3, 2022

The article “How to convert PDF to JPG using command line in Linux” shows how to split a PDF file into separate pages while converting them to images. But what if you want to do the opposite? How to assemble JPG images into a PDF file? This article is devoted to this, which will tell you how to create a...

How to convert PDF to JPG using command line in Linux (SOLVED)

Posted by Alex On April 2, 2022

PDF files are not very easy to split into image files in most programs that are used to open these files. However, there are several command line utilities for this. This article will show you how to convert PDF to JPEG on the Linux command line. ImageMagick (convert) To convert PDF to individual image files, let's start with the ImageMagick...

Error “convert: cache resources exhausted” (SOLVED)

Posted by Alex On March 22, 2022

When using the convert utility to convert images, you may encounter an error stating that the cache resources have been exhausted. Command example: convert -density 300 -quality 100 input.pdf output.png An example of the error it causes: convert-im6.q16: cache resources exhausted `/tmp/magick-q7O_IcbbGpFULs5R34rLlwAyeW1slGHi19' @ error/cache.c/OpenPixelCache/4095. This error occurs when two conditions are combined: processing a large file (for example, when converting...

Error “attempt to perform an operation not allowed by the security policy `PDF’” (SOLVED)

Posted by Alex On March 22, 2022

On Debian, Ubuntu, Linux Mint, Arch Linux, and derivative systems, when converting documents from PDF to PNG, an error occurs: attempt to perform an operation not allowed by the security policy `PDF' An example of a command that causes this error: convert -density 300 -quality 100 PL48536179.pdf out.jpg convert-im6.q16: attempt to perform an operation not allowed by the security policy...

What program to open .docbook files (DocBook)

Posted by Alex On February 20, 2021

In fact, .docbook files are not meant to be read - they are meant to be converted to HTML, man, PDF, DOCX, ODT, EPUB, FictionBook2, and many others. What is DocBook? DocBook is an XML-based standard used in many modern documentation tasks. When you want to create a DocBook document source, you write XML files that describe the document's layout,...