JPG Folio Sluggish

Wondering if anyone can offer some insight...
I've got a 2048x1536 horizontal-only folio set up with 5 articles. Each article has 6 pages in it. In testing originally with a "live" InDesign document, the folio was very sluggish when it came to scrolling vertically through the pages. I figured it might have been an issue with having to load the different items individually so I exported out each page as a high quality jpeg and reimported them into the folio. That is how it is currently set up.
Each jpeg is around 500-700kb and when I publish to the iPad, the vertical scroll issue is the same. It stutters/takes 2-3 seconds to load vertical pages. In running some tests, I'm wondering if there is a maximum number of pages you can have in each article. I have two sections uploaded currently and the filesize for the folio is only 7mb. The scrolling worked fine when I uploaded the folio with png compression but it ballooned the file size quite a bit.
Any thoughts would be appreciated!

Neil,
We're just getting ready to launch a new large magazine and want to make the right design choices. But we were wondering how when making PDF's DPS is deciding:
compression size and type, downsampling, whether jpeg quality is maintained, whether font sets are included? etc, etc.
These are all things you can normally control when making PDF's. What are the settings that are being used? and can they be changed or is this something that may not be available until future release?
Reason being: can we downsample the images to twice the resolution of a retina display?
Thanks
Chris

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Differences between PDF folios and PNG/JPG ones?

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Here are the differences between PDF and JPG/PNG articles that I'm aware of:
* PDF is not supported for Smooth Scrolling articles, even if you specify the PDF image format. For memory reasons, JPG or PNG is used instead. Enabling PDF for Smooth Scrolling articles is on the roadmap.
* It sometimes takes a moment for a PDF article to come into focus, especially on the iPad 1. With iOS 5.1, this load delay is rare, at least in my experience.
* PDF articles are not supported on Android devices. If a folio includes a single PDF article, it won't load in the viewer on a mobile device.
* Pages in PDF articles can pinch & zoom if enabled in Viewer Builder.
* The thumbnail previews of PDF articles do not appear in the Folio Producer Editor.
* Overlays should look and function the same whether PDF, JPG, or PNG. When you zoom in on an overlay in a PDF article, pixelation might be noticeable, but that's expected.

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Hi!
we recently started to work with DPS again and discovered that we can't create new folios anymore.
For some reason exporting always fails. even with empty folios. (sometimes it uploads empty ones).
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any idea what may be behind this?
Please Help!
Ron

im suddenly able to upload empty folios. but the moment i add one single image, the upload fails again...
whats wrong?!?
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Hi,
When we load pdf folios into Builder, Producer doesn't show us a preview of the page like it does for the jpg folio loads. If you click on the page area for the pdf folios, it just gives you a red box. Is there a way to see the page previews for the pdf folios like you can for the jpg folios? It makes entering metadata more difficult without being able to see the page preview.
~ Karen

That’s a limitation. No way around it.
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What is the best practice to produce in this scenario:
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Is there some documentatios from Adobe to produce renditions to differents tablets resolution for Android?
Nexus is retina screen for Android...
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Hi,
Great article
Then, I am in Scenario 1: Lazy Susan
1. Then let me know if I can produce 2 folios with aspect for iPad - 1024* and 2048*.
The adobe servers will do renditions to
JPG folio 1024*768 - to - Regular Androids tablets - 1280*800 / 1024*600 and so on (with letterbox)
JPG Folio 2048*1536 - to - HD tablets Androids - 2560*1600
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My JPG folio 2048 px will be so heavy, I believe
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Preview a shared unprotected article in Web Viewer?

I want to create my app to “Enable Web Viewer”, have many unprotected articles, and no paywall enabled. I want to use email, twitter and copy link sharing so that many non-iPad users can view my content via a browser. Can I do this? (Understanding of course that I will be charged for downloads based on the formulas outlined.)
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Yes, you can enable Web Viewer with email, twitter, and copy link sharing. If you're using v21, you need to create a 1024x768 folio using either PNG or JPG image format (not PDF). With v21, sharing articles from an iPad 3 doesn't work well in Web Viewer. With the upcoming v22 release, there will be better support for handling renditions, so you might want to hold off for a couple of weeks and test social sharing when v22 is available. (With the v23 release, it shouldn't be necessary to create a PNG/JPG folio -- any PDF folio will be uploaded to the Web Viewer server as PNG.)
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You can read more about social sharing and its current limitations here:
http://help.adobe.com/en_US/digitalpubsuite/using/WSf6ef983f54a76485-3d39e50113568f15d7f-8 000.html

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I want to see pinch and zoom on some of the pages and it looks like I can't mix up pdf articles with pngs unless "automatic" knows the difference.

If you are building a Single Edition publication you can read http://www.adobe.com/devnet/digitalpublishingsuite/articles/building-multi-rendition-artic les.html for details on how to use a single set of assets for both low and high resolution iPads.
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Large folio file size

We are half way through a book that comprises 100 single page articles. However it is already nearly 500 MB and this isn't sustainable.
Does the following affect the file size:
Is the Folio file size affected by the number of individual articles, would it be smaller if we had stacks of say 10 articles each with 10 pages rather than 100 single pages?
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800 MB worth of video sounds crazy.
Of course, a high number of videos can bring you to that.
I saw bigger dps apps. I think the apple limit lies around 4 gb (remember,
that is more than 25% of a whole 16 gb iPad)
The mp4 video codec does a really good job while keeping the quality high.
And the human eye is more forgiving to quality when it comes to moving
images compared to still imagery.
I wrote a collection of tipps and ideas how to reduce your file size.
http://www.google.de/url?sa=t&source=web&cd=1&ved=0CB4QFjAA&url=http%3A%2F%2Fdigitalpublis hing.tumblr.com%2Fpost%2F11650748389%2Freducing-folio-filesize&ei=uVbeTv_yD--M4gTY_OWbBw&u sg=AFQjCNHroLkcl-neKlpeidULpQdosl08vw
—Johannes
(mobil gesendet. fat fingers. beware!)
Am 06.12.2011 18:32 schrieb "gnusart" <[email protected]>:
Re: Large folio file size created by gnusart<http://forums.adobe.com/people/gnusart>in
Digital Publishing Suite - View the full discussion<http://forums.adobe.com/message/4067148#4067148>

Downsampling algorithm for JPG images in both PDF or automatic mode

Hello,
the question is: which algorithm is used when images are formatted by the Folio Builder in the Folio or Articles properties?
My question is focused on the static images and I know that it would be better to resize images before placing them in the document.
The question is also related to the image format.
If I use a non-compressed format such as the TIFF (without compression) then the images are re-formatted as JPG or PNG.
We know that both automatic and PDF option saves images as JPG or PNG depending by the transparency contained in the graphics.
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Thanks Ankit,
but in the article there is no response to my question: which algorithm is used to downsample the images and wich is the best way to mantein the images quality in both Automatic and PDF.
This is the problem.
Thanks

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Image Resizing and Folio Renditions

Hello!
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Depending on the format of your files, you need not go into JAI. You may be able to do what you want with ImageIO.
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Elements increases JPG file size - case # 0181346249

I just asked this of Adobe. Couldn't find anything this specirfic in the forums, anyone have anything on this? Thanks in advance. Lee
~~~~~~~~~~~~
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Hello Cube S JK
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