> On 1 Sep 2020, at 17:01, Schneider, Thomas (NIH/NCI) [E] via Skim-app-users > <[email protected]> wrote: > > On 9/1/20, 10:20 AM, "Christiaan Hofman" <[email protected]> wrote: > >> It looks like they just invented their own extension to the PDF format. In >> other words, these extra elements aren’t part of the PDF specifications. So >> only they will understand them. >> >> Christiaan > > Thanks. Do you think that what they did could be replaced by standard > elements with the same functionality? > > Tom
It sounds they added Line annotations, except they did not encode this as such. Christiaan
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