How Can I Use iTextSharp's PdfReader to Extract Text from PDFs in VB.NET or C#?

How to Utilize Itextsharp's PdfReader Class for Reading PDF Contents in VB.NET or C#

In this programming conundrum, we aim to extract the content of a PDF document using the iTextSharp library and its versatile PdfReader class. Whether the PDF contains plain text or textual images, this class enables us to access its content efficiently.

To begin, we create a StringBuilder object to accumulate the extracted text. Assuming that the PDF file exists and is accessible via the specified file path, we instantiate a PdfReader object to interact with the document.

Next, we embark on a loop that iterates through each page of the PDF document. For each page, we employ an ITextExtractionStrategy, specifically the SimpleTextExtractionStrategy, to analyze the page content. This strategy extracts the text from the current page and stores it in a temporary variable.

To ensure proper character encoding, we convert the extracted text from the encoding used during extraction to UTF-8. This step guarantees accurate representation of all characters, regardless of their original encoding. Finally, we append the extracted text to our StringBuilder.

Upon completing the loop, we close the PdfReader to release any acquired resources. The cumulative text, now stored in the StringBuilder, can be accessed and utilized as needed.

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