Check whether PDF has the evaluation text on it

Aspose.PDF Product Family
1

Hi there

Is there someway to detect whether the generated PDF has the “evaluation” text on it ?
- reason is I’m writing unit tests and one thing I want to test is the licence file has been successfully used

2

Hi Steve,

One option could be to read the text from the pdf document and match string like "Evaluation Only" etc.

This is how you can do that:

1. Extract text from the pdf file or page

PdfExtractor extractor = new PdfExtractor();

extractor.BindPdf(".\\pdffile.pdf");

extractor.ExtractText();

extractor.GetText(".\\textfile.txt");

2. Use text in the textfile.txt for comparison

load text in a string type variable i.e. strContent

then use strContent.Contains("Evaluation Only");

if you get true it means evaluation version is being used.

That's just an idea, if it helps!

Regards.

3

Hello Steve,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

Thanks for considering Aspose.

Aspose.Pdf.Kit has class named PdfExtractor which offers a function named, ExtractText which returns the text from Pdf file. You can extract the text into a file or into MemoryStream and search for particular string ("Evaluation" in this case) programmatically. For more related information and code snippet, please visit http://www.aspose.com/documentation/file-format-components/aspose.pdf.kit-for-.net-and-java/extract-text-from-pdf-document.html

NOTE: This is Beta version of PdfExtractor. Some features may not be supported well and we may be not able to fix them in short time.

4

Thanks for the pointer, much appreciated

5

Thanks for the pointer, again much appreciated