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https://issues.apache.org/jira/browse/PDFBOX-854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12919254#action_12919254
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MH commented on PDFBOX-854:
---------------------------
Ha! It's not the font! It's the coordinates! added some "debug" code:
-----------------------
contentStream.beginText();
contentStream.setStrokingColor(java.awt.Color.red); //test
contentStream.setNonStrokingColor(java.awt.Color.blue); //test: text
(foreground) color
contentStream.drawLine(0.0f, 0.0f, 100.0f,
200.0f); //test
contentStream.setFont(font, sizeOfFont);
contentStream.moveTextPositionByAmount(xf, yf);
contentStream.drawString(text);
contentStream.moveTextPositionByAmount(-xf,
-yf); //test
contentStream.drawString(text+" ***"); //test
contentStream.endText();
------------------------
And here's the result:
The "missing" text is probably not missing but drawn at the wrong place! First
I added the colors, then the line. For the PDFs with the "visible" (correct)
text, the line draws from the bottom left corner upwards+right. For the PDFs
with the "missing" text, the line draws from the TOP left corner
downwards+right!!!
Then I added "text+***" and this text also got drawn on the problematic PDFS:
for the "good" PDFS, the additional text is written horizontally at the bottom
left corner. For the "bad" PDFs, the text is written VERTICALLY starting from
the TOP left corner!
=> somehow the coordinates (system) is different in the problematic PDFs!
> PDPageContentStream.drawString() doesn't work with all PDFs
> -----------------------------------------------------------
>
> Key: PDFBOX-854
> URL: https://issues.apache.org/jira/browse/PDFBOX-854
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 1.3.0
> Environment: JDK 1.6.0_21
> Reporter: MH
> Attachments: Website_A4_Landscape_PDF14.zip
>
>
> I add custom text to misc exsiting PDF files. Now I wondered why my text
> doesn't appear for a specific PDF. It is not encrypted, has the same page
> size and adding Text with iText 2.1.7 works as expected. My code to add text
> is:
> ----------------------------------
> final PDPage page = (PDPage) allPages.get(i);
> final PDPageContentStream contentStream = new
> PDPageContentStream(doc, page, true, false);
> contentStream.beginText();
> contentStream.setFont(font, sizeOfFont);
> contentStream.moveTextPositionByAmount(xf, yf);
> contentStream.drawString(text);
> contentStream.endText();
> contentStream.close();
> ---------------------------------
> I tried to find differences between this PDF and other PDFs. What I noticed:
> the PDF where I can't see the text has a PDF-Version "1.3" and was created by
> "AFPL Ghostscript 8.54". Is there some known issue with PDFBox and such
> "older" PDF formats?
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