Windows allows to convert JPG/PNG images to PDF for free without having to install any additional software.
There are also many sites offering to convert JPG/PNG images to PDF online, but do you really trust them enough to upload your personal documents to their servers, especially when there is an easy way to create a PDF from a JPG/PNG image yourself?
Below I will show you how to convert JPG/PNG images to PDF on Windows for free. (more…)
If you have a PDF file protected by a password, you may wonder how to unlock it and remove the password protection so you don’t have to enter the password every time you want to open the file.
The PDF file protection can be easily removed by using a “Print” feature that is present in any web-browser on any operation system, incl. Windows, MacOS and Linux.
Below you will find an easy to follow step-by-step guide on how to unlock the password-protected PDF file using the web-browser’s “Print” feature. (more…)
A PDF document can be signed by inserting an image file with a signature (e.g. scanned copy of a written signature save as a .PNG file with a transparent background).
This can be done using a handwriting note-taking software with PDF annotation support that is called Xournal++.
It is an open-source and cross-platform application that supports Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows.
In this note i will show how to install the Xournal++ and use it to sign a PDF by adding an image file with a signature. (more…)
Ghostscript is a suite of software based on an interpreter for Adobe Systems’ PostScript and Portable Document Format (PDF) page description languages.
It can be used to merge PDF files or extract specific pages from a PDF file from the command line in Linux (Ubuntu) without loosing the quality. (more…)
A scanned document saved as PDF can be too large, that is not always good.
For example, the large size of a PDF file won’t permit to send it by email because of the probable limitation on the maximum size of attachments.
In Linux you can compress a PDF file from the command line without losing its quality, with the help of ps2pdf tool, that is a part of ghostscript suite.
From this article you will learn how to compress a PDF file and significantly reduce its size from the Linux command line. (more…)
Sometimes it is required to extract some pages from a PDF file and save them as another PDF document.
In Linux we can easily split PDF documents by pages using the command line utility called pdftk.
From this article you will learn how to extract individual pages or a range of pages from a PDF file and save them as another PDF document. (more…)
Sometimes it is required to merge several PDF files into a one PDF file.
In Linux we can easily join multiple PDF files using the command line utility called convert that is a part of ImageMagick software suite.
From this article you will learn how to merge entire PDF files into one PDF file or how to join specific PDF pages only into a single PDF file. (more…)