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Fix pdfium page scaling

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#353
This commit is contained in:
Ben Olden-Cooligan 2024-04-13 11:14:31 -07:00
parent 5ce15baf19
commit e556233274
1 changed files with 4 additions and 2 deletions
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6
NAPS2.Sdk/Pdf/PdfExporter.cs
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@ -430,6 +430,9 @@ public class PdfExporter
private static void DrawOcrTextOnPdfiumPage(PdfPage page, Pdfium.PdfDocument pdfiumDocument,
Pdfium.PdfPage pdfiumPage, PdfiumFontSubsets fontSubsets, OcrResult ocrResult)
{
// Set the page measurements so the coordinates are scaled correctly in GetOcrTextToDraw
page.Width = pdfiumPage.Width;
page.Height = pdfiumPage.Height;
using XGraphics gfx = XGraphics.FromPdfPage(page, XGraphicsPdfPageOptions.Prepend);
foreach (var info in GetOcrTextToDraw(page, ocrResult, gfx))
{
@ -440,8 +443,7 @@ public class PdfExporter
textObj.TextRenderMode = TextRenderMode.Invisible;
#endif
textObj.SetText(info.Text);
// This ends up being slightly different alignment then the PdfSharp-based text. Maybe at some point we can
// try to make them identical, although it's not perfect to begin with.
// The matrix alignment here is equivalent to the PDFSharp BaseLineLeft alignment
textObj.Matrix = new PdfMatrix(1, 0, 0, 1, info.X, (float) page.Height - info.Y);
pdfiumPage.InsertObject(textObj);
}