How to extract specific data from a PDF?

How do I extract a specific field from a PDF to Excel?

I'm looking for a solution to extract a field from a PDF.

I have the following PDF: and I would like to extract the name from the header (this field) and put it into Excel. Do you know if there is a way to do it? You can use LibreOffice, which has some very good PDF-to-Excel conversion tools built in. You can even search by filename, which will show the name of the PDF that you want. If that's all you need, it's great. But if you have many files and want to be able to easily sort them, you'll need to use something like the Find and Replace functionality.

An alternative to using LibreOffice would be to use the Acrobat Distiller add-in. This tool extracts a range of data from a PDF and then creates an Excel spreadsheet for you. There's a trial version available on the Acrobat website.

How to extract specific data from a PDF?

I am a newbie in using PDF files with the programming in Java.

I know this question is asked frequently, but none of the solutions worked for me. This is the first time I use PDF files in my project. Here is what I am trying to do:
I have a PDF document that contains images from A0 size to 5 pages each containing an image (A4). Now I want to extract the images from this PDF and use them. So how can I do that?
Alternatively, you can use. Import java.FileInputStream; import java.FileOutputStream; import java.IOException; import java.Reader; import java.Writer; for it. If your JDK is at least 1.5, you may also use the jai-PDF-Extractor 1.6 version.

Or you could try Apache FOP: The Apache FOP API makes it easier to process (and manipulate) XSLT FO documents as well as XML source documents. This should work, if you don't want to use JDKs 1.3 and earlier. The syntax is really easy to understand, you need to write into a OutputStream:
Document document = new Document();. // . Open your document // write the whole thing. Final Path xslPath = Paths.get("/path/to/Stylesheet.xsl");
Writer output = new OutputStreamWriter(new FileOutputStream(new File("/path/to/your.pdf")), StandardCharsets.UTF8);
// . Read the file into a stringReader.

Final StringWriter outputWriter = new StringWriter();. // . Run XSLT over your content and write it as an XML file.

Transformer.transform(source, new DOMResult(document)); transformer.flush(); transformer.setParameter("xsl:result-document", outputWriter);