Stamper and Color Modes

Technical Support Apryse SDK
1

We are using the Stamper class as follows:

Font font = Font.createTrueTypeFont(thisDoc,this.getClass().getResourceAsStream(fontLocation), true, true);
Stamper s = new Stamper(Stamper.e_font_size, fontSize, 0);
s.setFont(font);
s.setFontColor(new ColorPt(0, 0, 0, 1));

We are trying to produce PDF/X-1a compliant output but the resulting font seems to end with an RGB color mode. We were hoping “s.setFontColor(new ColorPt(0, 0, 0, 1));” would cause the CMYK color mode to be used. Are we improperly setting the font color or is the Stamper the wrong tool for the job.

Thanks.

2

Hello Brian,

Stamper will only stamp text in RGB. One option may be for you to create CMYK text in a new PDF page and then use Stamper.StampPage() instead of StampText():

http://www.pdftron.com/pdfnet/PDFNet/html/M_pdftron_PDF_Stamper_StampPage.htm

Please let me know whether this helps and if you have any further questions.

3

Thank you. Would using ElementEdit make more sense for altering existing pages?

4

Depends on what are your requirements. ElementEdit is a relatively low-level option
A bit more high-level option is ContentReplacer … as shown in ContentReplacer sample:
http://www.pdftron.com/pdfnet/samplecode.html#ContentReplacer