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    <p>I haven't used itextsharp, but I have been using <a href="http://www.pdftron.com/" rel="nofollow noreferrer">PDFNet SDK</a> to explore the content of a large pile of PDFs for localisation over the last few weeks.</p> <p>I would say that what you require is absolutely achievable, but how difficult it is will depend entirely on how much control you have over the quality of the files. In my case, the files can be constructed from any combination of images, text in any random order, tables, forms, paths, single pixel graphics and scanned pages, some of which are composed from hundreds of smaller images. Let's just say we're having fun with it.</p> <p>In the PDFTron way of doing things, you would have to implement a viewer (sample available), and add some code over a text selection. Given the complexities of the format, it may be necessary to implement a simple editor in a secondary dialog with the ability to expand the selection to the next line (or whatever other fundamental object is used to make up text). The string could then be edited and applied by copying the entire page of the document into a new page, replacing the selected elements with your new string. You would probably have to do some mathematics to get this to work well though, as just about everything in PDF is located on the page by means of an <a href="http://en.wikipedia.org/wiki/Affine_transform" rel="nofollow noreferrer">affine transform</a>.</p> <p>Good luck. I'm sure there are people on here with some experience of itextsharp and PDF in general.</p>
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    1. POIs there a way to replace a text in a PDF file with itextsharp?
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    1. COThanks Ian! I will take a look at it! :-)
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