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PDF is short for Portable Document Format, which means "portable document format", and is a file format developed by Adobe Systems for file exchange in a way that is independent of applications, operating systems, and hardware. PDF files are based on the PostScript language image model, which guarantees accurate colors and accurate print results on any printer, meaning that the PDF faithfully reproduces every character, color, and image of the original. In view of the complexity of PDF file formats, PDFs are generally manipulated through third-party components, and this article uses itext7. After introducing the itext7 component through NuGet, you can extract text from a PDF file using the following code: Sample code: Note that if your PDF file is a scanned version based on an image, then the code in this article cannot extract text, and you need OCR technology.
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Posted on 6/29/2022 3:31:16 PM
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