Debenu Quick PDF Library - PDF SDK Community Forum : DrawText as black only http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 04 Apr 2026 17:41:04 +0000 Wed, 08 Oct 2014 10:49:13 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=2975 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[DrawText as black only : Erico,When you call QP.SelectPage...]]> http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12049.html#12049 Author: AndrewC
Subject: 2975
Posted: 08 Oct 14 at 10:49AM

Erico,

When you call QP.SelectPage then we have no idea what the current defaults are for the new page so you need to call the drawing functions to select pens, linewidth, fonts, NormalizePage, SetPageSize, colours etc.

Andrew.
]]> Wed, 08 Oct 2014 10:49:13 +0000 http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12049.html#12049 <![CDATA[DrawText as black only : Thanks Ingo and Andrew for taking...]]> http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12044.html#12044 Author: erico
Subject: 2975
Posted: 07 Oct 14 at 3:38PM

Thanks Ingo and Andrew for taking the time to respond. You steered me in the right direction.
I've now solved my problem. It appears changing pages resets the text color to a default 0/0/0 RGB black, which is not the same as 0/0/0/1 CMYK black for color separation purposes.

This does not work:

SetTextColorCMYK(0,0,0,1)
for each(Page in myDocument)
{
  SelectPage(page)
  DrawText(x,y,"sting")
}

This does:
for each(Page in myDocument)
{
  SelectPage(page)
  SetTextColorCMYK(0,0,0,1)
  DrawText(x,y,"string")
}
]]> Tue, 07 Oct 2014 15:38:53 +0000 http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12044.html#12044 <![CDATA[DrawText as black only : Hi Erico,but SetTextColor(0,...]]> http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12020.html#12020 Author: Ingo
Subject: 2975
Posted: 26 Sep 14 at 12:26PM

Hi Erico,
 
but SetTextColor(0, 0, 0) will be black - that's what you want?
 
Cheers and welcome here,
Ingo
 
]]> Fri, 26 Sep 2014 12:26:51 +0000 http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12020.html#12020 <![CDATA[DrawText as black only : I don&#039;t want invisible text....]]> http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12016.html#12016 Author: erico
Subject: 2975
Posted: 25 Sep 14 at 2:54PM

I don't want invisible text. Perhaps I worded my erquest incorrectly. I want "black" only, so wen I pass my output through color separation, I do not have C-M-Y components, only K.
]]> Thu, 25 Sep 2014 14:54:27 +0000 http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12016.html#12016 <![CDATA[DrawText as black only : Erico, Calling QP.SetTextMode(3)...]]> http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12014.html#12014 Author: AndrewC
Subject: 2975
Posted: 25 Sep 14 at 12:01PM

Erico,

 
Calling QP.SetTextMode(3) will allow you to draw "invisible" text.

Andrew.
]]> Thu, 25 Sep 2014 12:01:20 +0000 http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12014.html#12014 <![CDATA[DrawText as black only : I am manipulating gray scale PDF,...]]> http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12013.html#12013 Author: erico
Subject: 2975
Posted: 24 Sep 14 at 8:07PM

I am manipulating gray scale PDF, but when I add text, they become CMYk. How can I add text and retain "no color"? I only see SetTextColor for rgb and SetTextColorCMYK for 4 color.
]]> Wed, 24 Sep 2014 20:07:03 +0000 http://www.quickpdf.org/forum/drawtext-as-black-only_topic2975_post12013.html#12013