Hi there.
I'm using itextsharp to do exactly what someone else was trying to do a
week ago (just joined, otherwise I'd have answered of course). My code
works fine for "normal" PDF files, that is without trying to create PDF/A
files. It fails as soon as I add the snippets to make it a PDF/A at
content.SetFontAndSize(font, fontSize);
with a PDFXConformanceException, "All fonts must be embedded".
Yes, sure. Makes sense. But actually I already want to embed the font in
the first place.
I'm pasting a slightly longer snipped for the guys that want to do the
same, marking the possible cause with a huge/caps comment. Again: The code
works as long as I don't try to create a PDF/A compliant PDF (i.e. the
parameter to my method is false).
Thanks in advance for any help!
Ben
private static void ConvertToPDF(RandomAccessFileOrArray sourceFile, string
destinationImageFile, bool searchable, bool pdfAcompliant) {
// Create the PDF document
Document document = new Document();
PdfWriter pdfWriter = PdfWriter.GetInstance(document, new
FileStream(destinationImageFile, FileMode.Create));
pdfWriter.StrictImageSequence = true;
pdfWriter.SetFullCompression();
pdfWriter.SetLinearPageMode();
if (pdfAcompliant) {
pdfWriter.PDFXConformance = PdfWriter.PDFA1B;
}
// POSSIBLE CAUSE HERE:
// This is the font I'm using. It's only used for invisible rendering
anyway
// The "embedded" parameter is true, but Visual Studio shows me that the
resulting
// BaseFont instance's "embedded" member is set to false when I debug
this?
BaseFont font = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.WINANSI,
pdfAcompliant);
// I do this for multiple pages, leaving the loop out here
Image pageImage = SomeConversionMethod();
// Set the size of the next page to the image dimensions
iTextSharp.text.Rectangle PageRectangle = new
iTextSharp.text.Rectangle(pageImage.Width, pageImage.Height);
document.SetPageSize(PageRectangle);
// Compute the scaling factor for coordinate transformations
double horizontalScaling = pageImage.ScaledWidth / pageImage.Width;
double verticalScaling = pageImage.ScaledHeight / pageImage.Height;
// Prepare/start the next page in the PDF document
if (document.IsOpen()) {
document.NewPage();
} else {
document.Open();
if (pdfAcompliant) {
// Copied verbatim from the itext mailing list, see:
// http://article.gmane.org/gmane.comp.java.lib.itext.general/31582/
PdfDictionary outputIntent = new PdfDictionary(PdfName.OUTPUTINTENT);
outputIntent.Put(PdfName.OUTPUTCONDITIONIDENTIFIER, new
PdfString("sRGB IEC61966-2.1"));
outputIntent.Put(PdfName.INFO, new PdfString("sRGB IEC61966-2.1"));
outputIntent.Put(PdfName.S, PdfName.GTS_PDFA1);
PdfICCBased ib = new
PdfICCBased(ICC_Profile.GetInstance(Properties.Resources.ICC_Profile));
ib.Remove(PdfName.ALTERNATE);
outputIntent.Put(PdfName.DESTOUTPUTPROFILE,
pdfWriter.AddToBody(ib).IndirectReference);
pdfWriter.ExtraCatalog.Put(PdfName.OUTPUTINTENTS, new
PdfArray(outputIntent));
}
}
if (searchable) {
// Grab the OCR Data
SomePageStructure ocrPage = GetPageFromSomewhere();
if (ocrPage != null) {
// Read all words in all lines
foreach (Line ocrLine in ocrPage.Lines) {
foreach (Word ocrWord in ocrLine.Words) {
// Calculate the font size for the OCR rectangle bounds
float fontSize = CalculateFontSize(font, ocrWord.Rectangle.Width
* horizontalScaling, ocrWord.Data);
// Special case: Some characters are non-printable: Continue with
the next word
if (fontSize < 0.1f) continue;
// Write the text to the PDF, on the layer below the default
content, invisble
PdfContentByte content = pdfWriter.DirectContentUnder;
content.BeginText();
// EXCEPTION BELOW
content.SetFontAndSize(font, fontSize); // EXCEPTION HERE, font
seems not to be embedded
// EXCEPTION ABOVE
content.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_INVISIBLE);
content.SetTextMatrix(
(float)(ocrWord.Rectangle.Location.X * horizontalScaling),
pageImage.ScaledHeight - (float)(ocrWord.Rectangle.Bottom *
verticalScaling)
);
content.ShowText(ocrWord.Data);
content.EndText();
}
}
}
}
// Draw/add the image to the PDF page
pageImage.SetAbsolutePosition(0, 0);
document.Add(pageImage);
if (pdfAcompliant) pdfWriter.CreateXmpMetadata();
document.Close();
}
Can anyone help out?
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