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22 Jun 2012 ... iTextSharp remove text from static PDF document C# The following code makes a white image over the text i want to hide from the user, it then makes the user not able to copy or paste into the pdf so they cannot select the hidden text and copy the value.
Most of this book describes how to reverse engineer programs in order to get an insight into their internal workings. This chapter discusses a slightly different aspect of this craft: the general process of deciphering program data. This data can be an undocumented file format, a network protocol, and so on. The process of deciphering such data to the point where it is possible to actually use it for the creation of programs that can accept and produce compatible data is another branch of reverse engineering that is often referred to as data reverse engineering. This chapter demonstrates data reverse-engineering techniques and shows what can be done with them. The most common reason for performing any kind of data reverse engineering is to achieve interoperability with a third party s software product. There are countless commercial products out there that use proprietary, undocumented data formats. These can be undocumented file formats or networking protocols that cannot be accessed by any program other than those written by the original owner of the format no one else knows the details of the proprietary format. This is a major inconvenience to end users because they cannot easily share their files with people that use a competing program only the products developed by the owner of the file format can access the proprietary file format. This is where data reverse engineering comes into play. Using data reverse engineering techniques it is possible to obtain that missing information regarding a proprietary data format, and write code that reads or even generates data in the proprietary format. There are numerous real-world examples c# remove text from pdf How to replace specific word in pdf using itextsharp C# .net ...
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Read and extract searched text from pdf file using iTextSharp in ASP.Net · How to read pdf ... Append merge PDF Documents in C# . 3. Deleting ... where this type of reverse engineering has been performed in order to achieve interoperability between the data formats of popular commercial products. Consider Microsoft Word for example. This program has an undocumented file format (the famous .doc format), so in order for third-party programs to be able to open or create .doc files (and there are actually quite a few programs that do that) someone had to reverse engineer the Microsoft Word file format. This is exactly the type of reverse engineering demonstrated in this chapter. The indexing techniques of ObjectStore were quite straightforward. By the time it was introduced, the students were confident with adapting and experimenting with examples, and a lot of students were comfortable with the API documentation. Simple path 24.09.2004 21:03 c# remove text from pdf PDF : Remove content from PDF page. Redaction marks. - VintaSoft
Remove text from the specified regions of PDF page (PdfPage. ... C# . // The project, which uses this code, must have references to the following assemblies: ... c# remove text from pdf iText - remove previously inserted over content text - Help Needed ...
However, if later on I want to remove the text that I added to the PDF , I am having problems with. There is very little information on how this is ... uwp barcode reader, .net core qr code generator, .net core qr code reader, uwp barcode scanner c#
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