Hi Alexander,
I noticed that too, I thought, ok, I can do that. However, like you I noticed that a logo which is 24 pixels high doesn't seem adequate for most uses or agree with the spec. The S1000D specification gives examples of a couple of different widths and the page header is 15 to 17 mm high and the logo can be between 32 and 50 mm wide, Chap 6.2.1 figures 6, 7, and 8. I make a potential logos to be 50 x 17 mm (142 x 48 pixels), or 50 x 15 mm (142 x 43 pixels), or 32 x 15 mm (91 x 43 pixels). Graphics in S1000D are also to be a minimum of 300 DPI according to the spec.
I thought my 24 pixel high graphic didn't quite look right. It looked stretched to fit and distorted.
So, I did find another way of working with a logo in the markup of a Data Module but initially I ran into trouble figuring out what size it should be hence my previous post. In the markup of each Data Module I found you can specify a logo after security:
<dmstatus issuetype="new">
<security securityclassification="01"/">
<logo>
<symbol id="ACQDS-IDAR3TTE" infoentityident="ICN-PLUTO-A-000000-A-00000-00066-A-01-1"/">
</logo>
I tried a couple of things using the markup, but I had the same problem as with my 24 pixel logo. The logo gets stretched to fit within a defined space, and since it had some text, it got pretty ugly:
I noticed that the S1000D logo as printed in the spec is fairly large, approximately 42 x 15 mm, and it looks decent, it seems at odds with the 24 pixel definition.
I exported the page of the PDF to jpeg and measured the output of one of my distorted logos in Photoshop. I noticed it was 60.11 x 9.31 mm, 710 x 110 pixels. So I think the logo has to fit a particular size. If I want my flag to appear it has to be left justified in the "white space" , please see my "test_logo.jpg" attachment which is a mock up. After the test I got a reasonably good flag logo in my PDF output.
However, I have yet to try the dimensions that the spec say's the logo should actually be. Have you tried this markup?
Greg