I am trying to extract text from a pdf from a specific region of the page,
using these objects:
Dim ScanArea As System.util.RectangleJ
Dim TextScanFilter As iTextSharp.text.pdf.parser.RegionTextRenderFilter
Dim TextScanListener As iTextSharp.text.pdf.parser.FilteredTextRenderListener
Dim iTextPageSize = Extractor.GetPageSize(CurrentPageIndex)
Dim CurrentTemplate As ExtractionTemplate = PageTemplates(TemplatePageNumber)
ScanArea = New
System.util.RectangleJ(selectedarea.ScaledLowerLeftX,Extractor.GetPageSize(CurrentPageIndex).Height
- selectedarea.ScaledLowerLeftY, selectedarea.ScaledWidth,
selectedarea.ScaledHeight)
TextScanFilter = New iTextSharp.text.pdf.parser.RegionTextRenderFilter(ScanArea)
TextScanListener = New
iTextSharp.text.pdf.parser.FilteredTextRenderListener(New
iTextSharp.text.pdf.parser.LocationTextExtractionStrategy(), {TextScanFilter})
Dim s = TextScanListener.GetResultantText()
Dim ExtractedText =
iTextSharp.text.pdf.parser.PdfTextExtractor.GetTextFromPage(Extractor,
CurrentPageIndex, TextScanListener)
At this point, the ExtractedText variable contains the text in the area, as
well as the text to the right and left of the area. The height appears to be
correct, but extraction width seems to be ignored completely. Is there
something I'm doing wrong here? Is this a feature that is not fully functional
in the non-commercial version of the assembly?
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