Apache PDFBox VS jsoup

Are you looking for a way to render PDF's or produce them? If you want to produce PDF's, I've used https://pdfbox.apache.org/ successfully as well as https://itextpdf.com/ (potentially costs money).

If you don't mind using java, you can use the open source Apache PDFBox library

https://pdfbox.apache.org/

It's relatively performant and it's a mature and supported codebase that can accomplish most pdf tasks.

Then, open the pdf_utils/pom.xml file and add a dependency to PDFBox, in the dependencies section:

There are some libraries for Java that can help you create a PDF file such as PDFBox or IText. Here there's a short exaplanation on how to use them.

So, when I started to view the documents, a lot of them simply failed to open. I had to look around for a library that could verify PDF documents. I had some experience with PDFBox in the past, so it seemed to be a good go-to solution. It had no way to verify documents by default, but it could open and parse them and that was enough to filter out the incorrect ones. It felt a little bit strange just to read the whole PDF into the memory to verify if it is correct or not, but hey I needed a simple fix for now and it worked really well.

PDFBox can do this. It’s not part of the CLI but it wouldn’t be too hard to add:

https://github.com/apache/pdfbox/blob/5b00807463279f1002e245...

2e. The HTML parsing library is in app-kt. It's called JSoup https://jsoup.org/

For parsing the webpage in Java or Kotlin you can use Jsoup

Jsoup — It is a Java library that can be used for both extracting and parsing HTML.

Finally, at this point, I was able to go through a bunch of webpages (parsing them in the process with JSoup), grab all the links that contained pdf files based on the file extension then download them. Unsurprisingly, most of the pages (~60-80%) ended up being unavailable (404 Not Found and friends). After a quick cup of coffee, I got the 10.000 documents on my hard drive. This is when I realized that I have one more problem to solve.

It might be better to use an HTML parser instead (this one looks good at first glance: https://jsoup.org/) although as long as you can make certain assumptions over the HTML input (for example that it'll always have those two attributes in this order) using regular expressions to parse it is feasible.

Poti folosi JSoup in Java https://jsoup.org/

There are five machine problems. None of the assignments took me longer than two to three hours, and the last one I completed in less than an hour. The MPs had been recently redesigned and tied together nicely. Each one covered a different course topic in the jsoup code base.

https://github.com/jhy/jsoup jsoup is a java library for parsing HTML. Intuitive API and extremely well readable code. I would definitely recommend this.