Text appears inside ()ġ27 // Keep previous chars to get extract numbers etc.:ġ28 char previousCharacters = new char ġ29 for (int j = 0 j = ' ') & (c = 128) & (cĢ35 /// Check if a certain 2 character token just came along (e.g. '\\' to get a '\' character or '\(' to get '('ġ24 // () Bracket nesting level. Don't forget to include the ITextSharp dll.Ĩ /// Parses a PDF file and extracts the text from it.ġ2 /// BT = Beginning of a text object operatorġ3 /// ET = End of a text object operatorĢ2 /// The number of characters to keep, when extracting text.Ģ4 private static int _numberOfCharsToKeep = 15 ģ6 public bool ExtractText(string inFileName, string outFileName)Ĥ1 // Create a reader for the given PDF fileĤ2 PdfReader reader = new PdfReader(inFileName) Ĥ3 //outFile = File.CreateText(outFileName) Ĥ4 outFile = new StreamWriter(outFileName, false, 8) Ĥ9 float charUnit = ((float)totalLen) / (float)reader.NumberOfPages ġ04 /// This method processes an uncompressed Adobe (text) objectġ09 private string ExtractTextFromPDFBytes(byte input)ġ11 if (input = null || input.Length = 0) return "" ġ17 // Flag showing if we are we currently inside a text objectġ20 // Flag showing if the next character is literalġ21 // e.g. Check out the PDFParser class, it has the function named ExtractTextFromPDFBytes(byte input) from that function you can see how the text is being extracted out from the uncompressed pdf file. In this project it shows how to extract data from a pdf. It would be better if you download the sample project and have a look on how it works.It does require the client of the payload to have the same dictionary definition to make sense out of it when render the parser output on to screen.I have done this kind of project a lot of times before.ġ.) Check out this project Extract Text from PDF in C#. This dictionary data contract design will allow the output just reference a dictionary key, rather than the actual full definition of color or font style. Same reason to having "HLines" and "VLines" array in 'Page' object, color and style dictionary will help to reduce the size of payload when transporting the parsing object over the wire. pdf2json will always try load field attributes xml file based on file name convention (pdfFileName.pdf's field XML file must be named pdfFileName_fieldInfo.xml in the same directory). V0.4.5 added support when fields attributes information is defined in external xml file. More info about 'Style Dictionary' can be found at 'Dictionary Reference' section 'S': style index from style dictionary.
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