Debenu Quick PDF Library - PDF SDK Community Forum : Flip / Mirror - horizontally / vertically http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 05 Apr 2026 17:14:13 +0000 Tue, 24 Oct 2017 11:15:46 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=3514 <![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[Flip / Mirror - horizontally / vertically : Interesting discussion :) ]]> http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14008.html#14008 Author: mLipok
Subject: 3514
Posted: 24 Oct 17 at 11:15AM

Interesting discussion :)

]]> Tue, 24 Oct 2017 11:15:46 +0000 http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14008.html#14008 <![CDATA[Flip / Mirror - horizontally / vertically : I was certain that there had been...]]> http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14007.html#14007 Author: tfrost
Subject: 3514
Posted: 24 Oct 17 at 10:56AM

I was certain that there had been a discussion here about using a matrix, and searched for it before my last posting, but it did not appear in the results!  I even contributed (minimally) to the topic you started (and I had not remembered that it was you who asked for info).

Having said that, I cannot get either of the two 'matrix' API functions I mentioned to do anything useful.  They return 1, which means that the matrix-transformed item was applied successfully, but it was not visible on the output.  I tried this in the scripting utility, and I even patched one of my applications which applies an image to use DrawImageMatrix (with various settings), but all it does for me is make the applied image disappear.

Exactly as before, I await your findings with interest!
 
]]> Tue, 24 Oct 2017 10:56:26 +0000 http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14007.html#14007 <![CDATA[Flip / Mirror - horizontally / vertically : Thanks for you comment. I must...]]> http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14005.html#14005 Author: mLipok
Subject: 3514
Posted: 23 Oct 17 at 12:36PM

Thanks for you comment. I must try.

btw. as to your concerns about matrix, look here:
http://www.quickpdf.org/forum/drawcapturedpagematrix-matrix-howto_topic2932.html

ooops I know this guy, hay wait a moment it was me .. :)

]]> Mon, 23 Oct 2017 12:36:35 +0000 http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14005.html#14005 <![CDATA[Flip / Mirror - horizontally / vertically : I would approach this issue by...]]> http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14003.html#14003 Author: tfrost
Subject: 3514
Posted: 23 Oct 17 at 10:59AM

I would approach this issue by capturing the page, and then using DrawCapturedPageMatrix with a suitable matrix which will flip it.  Problem is that the quick PDF documentation assumes you know how to set up a transformation matrix, and I don't!  In theory a negative scale should flip the image, but when I tried this running this function after modifying one of the provided scripts (the second one in 'page manipulation'), 1,0,0,1,0,0 did nothing and the same with -1,0,0,1,0,0.  You could also try rendering the page to a bitmap and using drawimagematrix.  Good luck!]]> Mon, 23 Oct 2017 10:59:22 +0000 http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14003.html#14003 <![CDATA[Flip / Mirror - horizontally / vertically : little bump.Any body have some...]]> http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14001.html#14001 Author: mLipok
Subject: 3514
Posted: 22 Oct 17 at 5:48PM

little bump.

Any body have some concepts ?
As you know I always share results of my works.

So if somebody could point me in to a good direction this can this can result in a nice result for everyone.

Regards,
mLipok

]]> Sun, 22 Oct 2017 17:48:06 +0000 http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post14001.html#14001 <![CDATA[Flip / Mirror - horizontally / vertically : ... to be more specyfic: I do...]]> http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post13988.html#13988 Author: mLipok
Subject: 3514
Posted: 15 Oct 17 at 12:32PM

... to be more specyfic:   I do not think about rotate feature.]]> Sun, 15 Oct 2017 12:32:27 +0000 http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post13988.html#13988 <![CDATA[Flip / Mirror - horizontally / vertically : I need to Flip / Mirror page.Once...]]> http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post13987.html#13987 Author: mLipok
Subject: 3514
Posted: 15 Oct 17 at 3:00AM

I need to Flip / Mirror    page.
Once horizontally / sometimes vertically .

Do you have any conceptual idea how to make it happend ?

Regards,
mLipok

]]> Sun, 15 Oct 2017 03:00:12 +0000 http://www.quickpdf.org/forum/flip-mirror-horizontally-vertically_topic3514_post13987.html#13987