Read pdf files with java

There is no need to install any third-party tool to read PDF in Java. In this quick step-by-step tutorial, we first load the target PDF file and then initiate the TextAbsorber class object that is capable of searching text through all the pages in the PDF. This whole text is returned into a string that can be displayed or processed as per the requirement. Similarly, we can parse all the images in the images collection and save them on the disc in any format as we saved it as JPG in this tutorial.

In this sample code, we used the TextAbsorber class and getImages function of Page. Whereas the getImages function of the getResources collection returns all the images on a page. Words Product Family Aspose. Examples can be found here. It explains it on the page, but one thing to watch out for is that the start and end indexes when using setStartPage and setEndPage are both inclusive. I skipped over that explanation first time round and then it took me a while to realise why I was getting more than one page back with each call!

Itext is another alternative that also works with C , though I've personally never used it. It's more low level than PDFBox, so less suited to the job if all you need is basic text extraction.

PDFBox contains tools for text extraction. In short, it's relatively easy to write a code that will handle simple cases, but it's basically impossible to extract text from PDF in general.

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Asked 10 years, 11 months ago. Active 19 days ago. If you need to make changes to an existing document, then you need to call the "save" method of the PdfDocument instance. In the above code snippet, a PDF document is loaded and another "Hello, World" text string is written at a different location specified by x-y coordinates on the first page using an overloaded method of PdfDocument.

This modified PDF document is then saved to a different file. You can also render text in different fonts and colors using PdfFont objects. You can create font objects either by specifying the name of the installed font or the pathname of the font file. In this revised code snippet, text has been rendered using specific fonts. This has been made possible by the use of another overloaded PdfDocument. A further improvement has been made on how the text is rendered using a particular font.

Colors used to fill and stroke the text have been specified by modifying the properties of the font object Tahoma. Next month, we will see how to create multiple pages, and render text, shapes, images and watermarks over them. Downloads: Full Java source code. NET applications.

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