El dimarts, 14 de març de 2023, a les 22:30:38 (CET), Shivodit va escriure: > Hello,
Hello, please write a Subject to your emails. > > I am a college student planning to contribute to KDE for GSoC '23, by > taking on the task of improving Okular on Android. I have the following > questions: > > 1. What will be the use case of implementing the Android AFontMatcher > font API? > > Initially I had tested a .pdf file in Okular for Android, and the > text in that file did not load at all. So I assumed that this API > would help to find the correct fonts in such situations, so that > text content could be properly shown. Exactly. > > However, now I am not sure - I tried some other pdfs with text, > and all of them rendered the text correctly. The issue with font > rendering only occurs when viewing the earlier mentioned pdf file. > If I use the "Print to file" option to create a duplicate of the > problematic pdf, the duplicated pdf loads correctly on Okular for > Android. Weirdly enough, the same problematic pdf renders correctly > when opened in desktop Okular. > > 2. Since the AFontMatcher API will be implemented in the Poppler backend, > I was wondering in which files/directories the programming work > would be done. > > Initially I assumed work would be done in the generator/poppler > directory of the Okular repo, but that turned out to be incorrect. > > After some digging, I stumbled upon the freedesktop Poppler repo, > (https://gitlab.freedesktop.org/poppler/poppler and it contains) > the code files for the Qt5 Poppler interface. I'm guessing the work > will be done here? No, the code will not be in the Qt5 Poppler interface, keep digging your almost there. > > 3. This is a bit off-topic, but why is the pdf mentioned above having > trouble with text rendering? All other pdfs with text content render > correctly, but only this specific file has trouble with loading on > Android Okular but it gets shown correctly everywhere else, including > other pdf viewers on Android. I can send the pdf if someone > would like to take a look at it. Without the PDF I can only guess is because the PDF doesn't embed its fonts. Cheers, Albert > > Thanks, > Shivodit
