Am 28.09.2016 um 15:02 schrieb Manuel Fomitescu:
Hello,I wan to use pdfbox in my project instead of the pdfl C adobe library. For the task I have to calculate the width/height of the first page of the document I used the following code: PDDocument document = PDDocument.load(new File(args[0])); PDPage pdPage = document.getPage(0); System.out.println("PDFBOX - NoPage: " + document.getNumberOfPages()); Aystem.out.println("PDFBOX - FirstPage Height: " + pdPage.getMediaBox().getHeight()); System.out.println("PDFBOX - FirstPage Width: " + pdPage.getMediaBox().getWidth()); To obtain the same thing with pdfl I run I command line with some parameters and read the response from a file, more ugly from java code. But the performance is a big problem. So with a 90MB pdf document I obtained a performance of 400millisec with pdfbox and 50millisec with pdfl. For a 1.7GB document I obtained a performace of 47106millisec with pdfbox and 151millisec with pdfl. These are very big differences. The main problem is that for accessing the first page I have to load the entire document and after that I can access the first page. PDFL has a constructor for a document with the page parameter and loads only that page from the document. Because of that it is working so fast Best regards, Manuel.
This is a known problem that can't be solved in a few hours / days. PDFBox does not "parse on demand".
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