[NTG-context] experiment

Henning Hraban Ramm texml at fiee.net
Wed Aug 28 12:36:49 CEST 2019

> Am 2019-08-28 um 10:36 schrieb Hans Hagen <j.hagen at xs4all.nl>:
> On 8/28/2019 10:04 AM, Henning Hraban Ramm wrote:
>>> Am 2019-08-19 um 16:06 schrieb Hans Hagen <j.hagen at xs4all.nl>:
>>> I've attached a document that I made last week. It's (currently) an lmtx only feature. In acrobat, the 'marked' areas (some tracing option) are the hyperlink. I have no clue how useful this is, maybe for maps or some educational setting. I had it on my agenda to play with it anyway. I don't think that viewers other than acrobat support it (even if it's already quite old pdf stuff; they should anyway fall back on the rectangle) but who knows ... I only tested sumatra (the okular that I have doesn't even seem to handle the links at all). It's not really efficient in bytes because it's (I think) meant for another usage. As with more features in the pdf format I think it might have started as some hack, but it's documented so ...
>> Hi Hans,
>> I tested Preview.app, Acrobat Reader DC, Acrobat Pro 9, PDF Studio Pro 2019, Foxit Reader and Skim on macOS Mojave.
> Sumatra (mupdf) also doesn't support it.

>> The masked or non-rectangular link areas works only in Acrobat Reader and Pro.
>> The others handle the links as whole page rectangles. Skim doesn’t always jump to the right page.
>> I’ll send your example to the developers of PDF Studio.
> Ok, thanks. Maybe we should have a wiki page that sums up viewers and what they support.

Like we have for editors:

I’ve an overview in my (still upcoming…) book, see attachment. I really thought I didn’t compile that myself, but there’s no wiki page...
Like with the editors, it’s difficult to keep current; don’t even think about complete.
There are so many features where viewers differ...

Greetlings, Hraban

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