* Maxim Nikulin <maniku...@gmail.com> [2020-11-28 19:13]: > 2020-11-27 Jean Louis wrote: > > * Alan Schmitt [2020-11-27 11:15]: > > > > > https://github.com/fuxialexander/org-pdftools). There is also the > > > org-noter option (https://github.com/weirdNox/org-noter) to link > > > external annotations to pdfs. > > > > Annotations are long time envisioned feature that is very poorly > > implemented in any hyperdocument systems. Hypothes.is implement it for > > WWW but WWW could be better designed to allow easier > > annotations. Browsers are missing it all over. > > A remark just to ensure that there is no confusion. PDF format has its own > annotations that are saved inside the file (highlights, text notes, > drawings). It is quite convenient to comment e.g. draft version of a paper. > Another use case is working with a document on a tablet. > > External annotations are certainly powerful but sometimes they are not an > equivalent.
Your remark is quite good. Then once annotated document has been prepared as PDF such can be referenced by constructed hyperlink from other hypertext systems. One problem with such PDF is that annotations may be confidential or not public and that remains to people to solve their access permissions. Other case is providing simple annotations for online PDFs that are not on one's own server. On my side solving that by referencing to people over WWW involves creating separate WWW page with annotation over the online accessible PDF page. It may be harder to read but still solves problem to certain degree. Let us say I wish to reference Memex, instead of: Memex https://en.wikipedia.org/wiki/Memex then there would be reference like this rather: Memex https://www.example.com/1/2/3/643 and on such intermediary website, one could get hyperlinks and annotations to the original website. Such annotations, comments, notes, and other relations to the final hyperdocument could be updated in the mean time while the original URL as reference https://www.example.com/1/2/3/643 remains static. Upon opening of the intermediary URL https://www.example.com/1/2/3/643 the destination URL could be opened as well in a new window by using Javascript. Though I do not prefer that approach. The annotating page could look something like below, with maybe more various references to the subject being referenced and various hyperlinks automatically displayed. There are Emacs packages that allow Emacs buffers to be htmlized. Memex ===== Tags: memex Type: WWW Hyperlink: https://en.wikipedia.org/wiki/Memex Memex is the name of the hypothetical electromechanical device that Vannevar Bush described in his 1945 article "As We May Think". Bush envisioned the memex as a device in which individuals would compress and store all of their books, records, and communications, "mechanized so that it may be consulted with exceeding speed and flexibility". The memex would provide an "enlarged intimate supplement to one's memory".
