Page Layout: Background does not fit page

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Page Layout: Background does not fit page

Postby oceanclub on Mon Dec 09, 2019 10:46 am

I've created a page layout with the following measurements:

Custom width: 720px
Custom height: 1280px
Orientation: Landscape
Margins: none

(In this instance, Flare uses the _height_ of the page as the width measurement, which is confusing.)

On the page layout I then added a background graphic of exact size 451 width x 720 height, with the following settings:

Repeat: No repeat
X: Right
Y: Top (also tried Centre)

Naturally I expect the graphic to appear as a bar taking up the entire right side of the page. But instead there is a large gap. Since the measurement of the graphic height matches the page height I have no idea why. Any help appreciated.

Paul
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Re: Page Layout: Background does not fit page

Postby robdocsmith on Mon Dec 09, 2019 3:11 pm

Hi Paul,

This looks like an image resolution thing. I copied your layout and added a background with dpi of 150 and got a shrunken image on the layout. On a hunch I changed the dpi of the image to 96 and resaved. Because my layout was open it didn't update, so I aligned the background left, then right as desired, and the image now fills the page top to bottom and is flush right.

Hope that helps,

Rob
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Re: Page Layout: Background does not fit page

Postby oceanclub on Tue Dec 10, 2019 2:32 am

robdocsmith wrote:Hi Paul,

This looks like an image resolution thing. I copied your layout and added a background with dpi of 150 and got a shrunken image on the layout. On a hunch I changed the dpi of the image to 96 and resaved. Because my layout was open it didn't update, so I aligned the background left, then right as desired, and the image now fills the page top to bottom and is flush right.

Hope that helps,

Rob


Hi Rob,

I could understand DPI being an issue if I was using inch/cm as the measurements but here I'm using pixels, surely it shouldn't count? The height of the image is 720 pixels, irrespective of DPI. Maybe my understanding is wrong?

P.
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Re: Page Layout: Background does not fit page

Postby robdocsmith on Wed Dec 11, 2019 6:23 pm

True, but my understanding is that a printed document (PDF) is based on a specific measurement - a physical size to print - and therefore there must be a conversion somewhere from pixels to measurement and hence a dpi. I'm not sure what process Madcap uses to create the PDF as it isn't a distiller instance with a PDF profile and a specific resolution for the output.

My guess (and it's a guess) is that when you create a page layout using pixel measurements, it gets internally rendered as the equivalent at 96dpi. So an image placed on that page will be scaled to that same resolution.

Rob
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Re: Page Layout: Background does not fit page

Postby Nita Beck on Thu Dec 12, 2019 10:12 am

I think I've solved this in the past by setting the Flare option "Automatically resize low DPI images" (or perhaps I turned that option off).

It's located in File > Options > General.
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