I need help - I can help - Convert PDF to BMB with monochrome color

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Convert PDF to BMB with monochrome color

Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=2088
Printed Date: 06 May 24 at 10:26AM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: Convert PDF to BMB with monochrome color

Posted By: asreddy
Subject: Convert PDF to BMB with monochrome color
Date Posted: 04 Jan 12 at 9:05AM

Hi,
I am new to Quick PDF library, I need to convert PDF page to BMP with monochrome color.
When I use Quickpdf function RenderDocumentToFile it converts with color BMP, it result taking long time to convert and the output file size also very big.
Is there any way to convert PDF to BMP with monochrome color?. Please help.

Many thanks.

Replies:

Posted By: Ingo
Date Posted: 04 Jan 12 at 9:58AM

Hi!

The online reference doesn't contain any hint for your issue.
Perhaps you can get more success including the GDIPlus-dll to your code?
Try it.

Cheers and welcome here,
Ingo

Posted By: AndrewC
Date Posted: 05 Jan 12 at 11:56AM

Quick PDF Library doesn't have any functions to convert an PDF to a B/W image. The only exception is the recent addition of RenderPageToFile using option 10 which creates a B/W Group4 TIFF file. Option 10 will convert a colour PDF to a B/W TIFF for this particular case. Note the Group4 function doesn't work with XP or Server 2003 because Microsoft haven't released a GDI+ update for these operating systems. Vista and Win7 work perfectly fine.

You may need to use a 3rd party Graphics Library or use GDI+ to convert the Colour BMP generated from QPL to a B/W bitmap.

Posted By: Ingo
Date Posted: 05 Jan 12 at 12:21PM

"Note the Group4 function doesn't work with XP or Server 2003 because Microsoft haven't released a GDI+ update for these operating systems"

Hi Andrew!

Is there a report available on which os the gdi+ is as standard-dll included and on which not?
Are there complete informations available on which os the gdi+ supports all functionality from QuickPDF?
If i don't embedd the gdi+ in my QuickPDF-app what will happen... only less quality with few functions or will some fail?

Cheers, Ingo

Posted By: AndrewC
Date Posted: 05 Jan 12 at 1:13PM

GDI+ 1.0 is included as standard with Win XP and Win Server 2003.

GDI+ 1.1 is included with Vista, Win 7 and Server 2008. If you have Win 98 then I believe it is possible to install GDI+ via a download from Microsoft. We don't really want to support any OS older than XP as it is around 10 years old.

http://www.microsoft.com/download/en/details.aspx?id=18909 - http://www.microsoft.com/download/en/details.aspx?id=18909 - Download for older PC's

Nearly all PC's will have a copy of at least GDI+ version 1.1 because it is used by so many programs.

We had have a few requests for Group4 compression from customers so we added basic Group4 compression via GDI+.

Andrew.

Posted By: Ingo
Date Posted: 05 Jan 12 at 3:52PM

Hi Andrew!

Thanks a lot for the quick answer!

Cheers, Ingo

Posted By: asreddy
Date Posted: 06 Jan 12 at 12:15PM

Hi Ingo and Andrew,
Thanks a lot for your answers!

asreddy.