[xep-support] Re: Images in PDFs are being enlarged

It is likely the difference in assumed resolution HTML=screen, you viewing
in image viewer=screen and RenderX putting into a PDF an image with
intrinsic (meaning not real, actual) dimensions. My guess would be that the
image in PDF is 120/96 times larger (1.25). RenderX uses 120 dpi resolution
for images when no actual information exists in the image that specifies
actual image size. Windows applications use 96 dpi to calculate this
information.

You could just use image dimensions on the external-graphic to force size -
set content-width and content-height to the exact size you want.

Or try scaling down by 1/1.25 = 80%

Kevin Brown

RenderX

From: Rhonda Fitzgerald [mailto:rfitzger@progress.com]
Sent: Friday, April 13, 2012 10:37 AM
To: martin.vanrappard@emc.com; xep-support@renderx.com; kevin@renderx.com
Subject: RE: Images in PDFs are being enlarged

Here is what is being written to the topic.fo file:

<fo:block id="" margin-left="auto"><fo:inline
id="image_vx1_2x4_sf"><fo:external-graphic
src="url(file:/C:/output_generator/progress/temp/19.1334337182392/content/au
thoring/rfi1332788407953.image)"/></fo:inline></fo:block>

The image source file is actually a .jpg file that is imported into my CMS
(IXASOFT DITA CMS). IXIASOFT gives all images in the CMS a .image
extension. No scaling attribute has been applied to the image in the DITA
topic.

So, if I look at the .image file (attached) in Paint Shop Pro (rename it as
a .jpg file, first), the size of the image is correct and what I would
expect to see in the PDF output. This is the image that was copied down to
the temp folder and is the image being used during the DITA OT processing.

But, in the PDF (also attached) the image file is enlarged. All of the
images in this file have this problem, but this particular image is on page
5.

So, the dimensions of the image in the PDF are larger than the source image.

My other output formats (ie: HTML) not using XEP do not have this problem.

Rhonda

From: martin.vanrappard@emc.com [mailto:martin.vanrappard@emc.com]
Sent: Friday, April 13, 2012 9:53 AM
To: xep-support@renderx.com
Cc: Rhonda Fitzgerald
Subject: RE: Images in PDFs are being enlarged

Did you check the FO output to see if perhaps scaling (width and height)
attributes are added or used somewhere? Or not used, perhaps?

Also, what type of images? JPG, PNG, GIF, .?

From: xep-support-bounces@renderx.com
[mailto:xep-support-bounces@renderx.com] On Behalf Of Rhonda Fitzgerald
Sent: 13 April 2012 15:27
To: xep-support@renderx.com
Subject: [xep-support] Images in PDFs are being enlarged

I am using XEP (Version 4.19 build 20110414) to generate PDF using the DITA
OT v1.5.4.

When I generate PDF, the images in the PDF are enlarged. They are
definitely larger than the source files that are being reference in my DITA
XML topics.

Any pointers on why this is be happening?

Thanks,

Rhonda Fitzgerald

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Received on Sun Apr 29 23:49:48 2012