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Instructions and Help about pdf2csv python

Hello everyone and thanks for joining my name is Demeter night enough and I'm a freelance button developer from Sofia Bulgaria today I'm going to talk to you about extracting tabular data from PDFs and the problems I faced and as well the solutions which I found so let's start by a quick overview of what this top would be about so sorry first we'll have a brief history of the PDF Portable Document format and its internal structure specifically how specifically how tabular data is represented and why it's hard to actually extract such data then on top Camelot and Excalibur the main focus of this talk I'll see I will list the features which those libraries make available for use and why it's so easy to use them to extract the tabular data and get control over the extraction process as well then there is time for some quick demonstration which I'll show you how to use the kernel lot API and how you can tweak the extraction process to suit your needs and at the end we'll have some Q&A and also a look at possible improvements that can be done in Camelot and an Excalibur as well so let's get started with the portable document format so almost thirty years ago if not more John Warnock which is one of the founders of Adobe Systems started something which was unofficially called the Project Camelot the Camelot project sorry and this crab goes in a manifest to sort of document six pages long and here you can see a few extra excerpts from that document the goal was to create the universal document format which is easy to exchange between different systems environments Oasis and each PDF can contain rich content annotations attachments fonts and all sorts of different things that are needed to represent this PDF the same way regardless on which machine or always you're looking at that and most importantly print it the same way as the author intended and this this here is from an article from adobe called the evolution of the digital document celebrating adobe acrobat 25th anniversary whatever so let's see a few quick facts about PDF so it was created in the early 1990s it actually predates the World Wide Web and HTML format it was a proprietary format initially but later in 2008 it was released as an open standard by the international standards organization it's based on a subset of the adobe postscript which is a page description language and a subset because PostScript itself is is quite broad and it's practically programming language and although it doesn't look so and it was designed to be self-contained so that each PDF contains everything you needed to render that on on various different systems and in order to do that it uses fountain bedding and attachments and annotations and various other things there are 13 versions released so far since 2008 as I said version.