Franco Pasut Blog

1. Subject of this article. 2. Python source analysis. 3. The full source code in Python. 1. Subject of this article. The goal is to generate a simple program to collect the text contained in various PDFs generated directly from word processing programs and insert the various fragments into a single document in Markdown language by separating the fragments with second-level headings corresponding to the name of the source documents. The "hands-on" solution is to copy the text from the individual documents, one by one, and paste it into a second document. Or you could build a simple application in Python that does all the work automatically, saving an amount of time directly proportional to the number of documents to be processed. The script , generated with the help of Copilot ( because I am not a programmer), requires the installation of the PyPDF2 library. Warning: this article does NOT discuss optical character recognition (OCR). For that topic, yo...

Abstract : Compression of PDF documents is a useful technique to reduce the space occupied by these files and facilitate their transmission and storage. In this article, starting from a page devoted to compressing single PDFs, I present two methods for compressing multiple PDF documents. The reference page is as follows: " Linux shell script to reduce PDF file size (simple verification required to enter) and allows you to operate on single PDFs in command-line bash code in the GNU/Linux terminal. Based on the previous one, I tried to extend the procedure to operate on multiple PDFs. In the end I present a simple application in Python with graphical interface. I admit that I asked for some help from ChatGPT and Copilot. Table of Contents: 1. The necessary condition. 2. The reference script for size reduction of individual PDFs 2.1. Script analysis and usage. 3. Derived script to operate on multiple PDFs. ...

1 LaTeX and the document format 2 Exporting documents from PDF to PNG. 3 Exporting images from PDF to PNG. 4 Examples 1 LaTeX and the document format As, of course, you all already know (:smiley:), LaTeX is a language dedicated to the typesetting of documents with state-of-the-art quality. It is, therefore, unnecessary to note that the basics of LaTeX can be learned in about 30 minutes, as illustrated in this page . For the purposes of this article, it is sufficient to recall that sources in LaTeX are composed of a preliminary part, also called the preamble , and the document with the contents. The format of documents generated by LaTeX is defined at the beginning of the preamble with the command \documentclass . The (probably) most widely used classes, such as article , report and book , produce documents in formats with predetermined sizes, specified by specific options, such as A4 (...

Subject of this article Recently I needed to convert some documents from PDF format, containing text generated by LaTeX in GNU/Linux operating systems, into vector images. While avoiding conversion from online services, I basically found three interesting solutions: two in command-line mode ( pdf2svg and pdftocairo ) and one, very famous, in graphical mode ( Inkscape ). In this article I report my evaluations highlighting some differences deriving from the source of the PDF documents and the behaviour of three Linux distributions. Some interesting references on the subject: - Exporting .png or .jpg files directly from LaTeX code. Possible? - LaTeX/Export To Other Formats pdf2svg It’s a command line software, very easy to use, reliable and fast. The followin is the command scheme: pdf2svg < in file.pdf > < out file.svg > [ < page no > ] You can specify the number of pages to be exported. Ideal for quick and direct o...

In this article I will explain how the inverse search (or inverse synchronisation if you prefer) may work, in a Windows operating system, between a source document in LaTeX, written via a command line editor, and a PDF reader.