The reading order is in my experience only correct, if the text is linked.
When it comes to alternative text. You draw the out of the image meta information view Object export settings. Is that right? Does it fil with any file type or only with JPG or TIF or a specific kind. With captions there was a problem in the past that JPG's captions from its meta was ignored, so I had to work with PDFs.
Or are you sure that the textual information is written into the image itself or only to the database of Bridge or Lightroom. Make sure that this information is part of the image itself.
I'm not sure what you mean by if the text is linked. According to the instructions provided by Adobe, you create your paragraph styles and set your tags (h1, h2, h3, p, etc.), and then use the articles panel to set your reading order, both for text and images.
Yes, alternate text is set in the Object Export Options dialogue box, placing the alternate text both in the Alt Text tab and the Tagged PDF tab. The issue has been experienced with a variety of file types including jpg, png, tif, and ai files.
I am not using Bridge or Lightroom. Links are set to the images in the appropriate file directories, and alt text is set within the Object Export Options dialogue box within InDesign, and not within the meta data sections of other applications.
Text is linked when it is not in different stories, but in the same text thread. The article panel is not respected when it comes to the reading order in a PDF, only in EPUB export.
Try to edit the meta data in Bridge and draw that information into InDesign via the Object Export settings set up to meta information. I think you will be much faster that way, and try it, if it would work better that way.
Willi Adelberger wrote:
The article panel is not respected when it comes to the reading order in a PDF, only in EPUB export.
Not according to Adobe: "The article panel is not respected when it comes to the reading order in a PDF, only in EPUB export." ... "The article panel is not respected when it comes to the reading order in a PDF, only in EPUB export." -Creating accessible PDF Documents
I don't use Bridge for image management and am typically pulling from a large collection of imagery from a shared server used by other designers and creatives in different departments.
The correct quote did not post from Adobe. Apparently my Ctrl hotkeys are not working in Chrome...
Adobe: "InDesign CS5.5 introduced the Articles panel, which makes tagging PDF documents easier than ever — you no longer have to use the Structure pane or Tags panel." ... "Articles provide designers and production artists an easy way to create relationships among page items. These relationships define the content to be used while exporting to ePub, HTML, or accessible PDFs, and define the order of the content." -Creating accessible PDF Documents
The Articles panel in InDesign absolutely can control the tag order of elements (reading order) when used. If you use the articles panel, you need to make sure that you also choose "Use for Reading Order in Tagged PDF" from the Articles panel menu. You don't have to thread the text to control the reading order although the Articles panel doesn't allow you to insert an image in the middle of an existing text story. You still need to anchor the image to make that work.
Regarding the alt text, I've not encountered this inconsistency that you are describing. Which specific version of InDesign are you using? I know you said CC 2015, but I'm curious which release.
I do have use for reading order in Tagged PDF checked, but the order is still off fairly regularly after export to Acrobat. As far as the version, this is the 2015.4 Release, 184.108.40.206 x64 Build.
For the life of me I cannot figure out why the alt text makes it with some images, and not with others. Another, annoyance related to alt text is that sometimes Acrobat sees one image as two. It will have alt text for the image, but then there is a highlighted blank area, usually to the left of the image that is the same size that it recognizes as an image in need of alt text as well. I'm thinking it has to be some sort of bug (all of these issues probably are) that is fixed by marking the blank an artifiact, but I really should not have to take the time to do that. :/
I have the same issue, in CS6, Mac. Only one of 3 images with alt text assigned, makes it into Acrobat showing any alt text.