GNU TeXmacs - Bugs: bug #60218, include LinkBack data in...
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bug #60218: include LinkBack data in "copy as image" pdf target
Submitter: | Peter Rapcan <peterrapcan> | ||
Submitted: | Fri 12 Mar 2021 08:14:36 PM UTC | ||
Category: | Conversion | Priority: | 5 - Normal |
Item Group: | Wishlist | Status: | None |
Privacy: | Public | Assigned to: | None |
Originator Name: | Open/Closed: | Open | |
Release: | None | Release: | |
Fixed Release: | None | Fixed Release: | |
Keywords: |
Thu 01 Apr 2021 09:30:03 PM UTC, comment #5: |
Peter Rapcan <peterrapcan> |
Thu 01 Apr 2021 08:24:32 PM UTC, comment #4: Maybe would be good to change the title of this wish item since I do not think LinkBack is a suitable option (also because is not available in other systems as far as I understand). |
Massimiliano Gubinelli <mgubi> |
Thu 01 Apr 2021 08:23:35 PM UTC, comment #3: I've added a section here:
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Massimiliano Gubinelli <mgubi> |
Thu 01 Apr 2021 07:23:16 PM UTC, comment #2: The list of apps is in the right column here: http://linkbackproject.org. The list is incomplete I think, as LaTeXit supports is but is not listed.
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Peter Rapcan <peterrapcan> |
Tue 16 Mar 2021 10:37:18 PM UTC, comment #1: It seems to be a technology independent of the PDF format, see http://linkbackproject.org
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Massimiliano Gubinelli <mgubi> |
Fri 12 Mar 2021 08:14:36 PM UTC, original submission:
On macos, e.g. LateXit can generate a PDF containing rendered mathematical symbols, together with so-called LinkBack data, which enables a supported application (like older versions of Keynote) to double click on the pdf image to open the underlying original latex source for editing back in the LateXit application.
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Peter Rapcan <peterrapcan> |
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Follow 2 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
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2021-03-12 | peterrapcan | Attached File | - | Added Archive@2.zip, #51049 | |
Carbon-Copy | - | Added peterrapcan |
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Corresponding source code
I don't know how to rename the title.
According to the LaTeXit website, the source TeX expressions can be stored in pdf as well as in images (there via exif data, with the following warning by LaTeXit: "Every export format of LaTeXiT cannot embed the generating LaTeX code. As much as possible, prefer PDF. The TIFF, PNG and JPEG formats store the LaTeX data in the EXIF meta-data, but… these ones are often truncated when too big. Unless this limitation is dropped in the future, those formats won't allow further reopening.")
As far as linkback is concerned, I think in the case relevant to us it "only" provides mechanism to re-open e.g. pdf embedded linkback-compatible application it the source app like LaTeXit by doubleclicking the embedded object, then synchronize changes back to the linkback-compatible app etc.
I think the source data being stored inside e.g. pdf is independent from the rest of the above linkback functionality.
In any case, LaTeXit source code is available at https://www.chachatelier.fr/latexit/latexit-downloads.php?lang=en and is released under the CeCILL license (open source, GPL compatible); So we could basically try to identify and extract the relevant functionality from LaTeXit, replacing TeX with TeXmacs expressions. There is an xcodeproj in the source code, too.