Created attachment 184279 [details] Screenshot: Okular and LibreOffice Draw views of a PDF Visual breakage =============== Example 01 ---------- The screenshot at bug 149216 comment 0. Blue underlining neither begins at the beginning of the link, nor ends at the end of the link. Underlining overextends, to part of an adjacent word that was not originally part of the linked text. Example 02 ---------- Screenshot attached. Upper window: Okular. Lower window: LibreOffice Draw. Environment: FreeBSD 14.0-CURRENT. % pkg info -x libreoffice libreoffice-7.4.3.2_1 % uname -aKU FreeBSD mowa219-gjp4-8570p-freebsd 14.0-CURRENT FreeBSD 14.0-CURRENT #27 main-n259662-ebdf27b6f367-dirty: Sun Dec 11 11:31:52 GMT 2022 grahamperrin@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG amd64 1400074 1400074 %
Created attachment 184280 [details] PDF for example 02 This PDF was used for the screenshot for example 02 in comment 0.
Created attachment 184281 [details] The email from which I produced the PDF for example 02 I opened this .eml file in Thunderbird. Printed, destination: Save as PDF.
Created attachment 184282 [details] PDF produced by Draw Functional breakage =================== The screenshot at comment 0 shows me pointing at a usable link in an Okular view of the PDF at comment 1. In the PDF attached to this comment, produced by Draw: * there's the (somewhat broken) appearance of links * with the file open in Okular, pointing at what appears to be a link does not cause the cursor to change (from an arrow, to a hand); and clicking does not have the required effect.
(In reply to Graham Perrin from comment #0) > … > > Example 02 > ---------- > > Screenshot attached. > > Upper window: Okular. > > Lower window: LibreOffice Draw. > > … Now I see, the fonts: * monospace (correct), viewed in Okular * not monospace in LibreOffice Draw. Is that, bug 85295? If so, does it partly explain the misplaced beginnings and endings of blue underlines?
Seems project poppler based pdfio filter (psdiprocessor.cxx) performs no parsing of the URL/URI--LibreOffice is not a PDF viewer or editor. T The xpdf/poppler import is a not-so-simple extraction of page formatting, the text runs are extracted without substantive logic to reassemble syntax or structure. The URI underlines are graphic decoration not attributes of the individual glyphs, so reasonable they are not aligned with the extracted text runs. Alternatively, the pdfium based insert is a full PDF viewer and renders the content to document canvas with high fidelity. IMHO => NAB, this is not a bug, but providing logic in the PDF import filter to recognize URI would be useful. Strangely can't find an enhancement request for filter import of URL from PDF, setting => Enhancement
Thank you, (In reply to V Stuart Foote from comment #5) > … the pdfium based insert Please, can you put this in a LibreOffice context for me? I see <https://pdfium.googlesource.com/pdfium/+/refs/heads/main/README.md>, however it's entirely new to me. > Strangely can't find an enhancement request for filter import of URL from > PDF, setting => Enhancement I'll edit the summary line here to focus on the enhancement. ---- Assume that the visual breakage (essentially: monospace misrepresented as proportional) falls under bug 85295.
(In reply to Graham Perrin from comment #6) > > … the pdfium based insert > > Please, can you put this in a LibreOffice context for me? > > I see <https://pdfium.googlesource.com/pdfium/+/refs/heads/main/README.md>, > however it's entirely new to me. > The pdfium is the Google sponsored PDF viewer for the Chrome browse. Its open source libs provide an alternative to poppler libs for parsing PDF pages to LO's vcl canvas. See bug 89727 and its see also links... these commits: =-ref-= https://gerrit.libreoffice.org/26586 https://gerrit.libreoffice.org/26628 https://gerrit.libreoffice.org/26695 https://gerrit.libreoffice.org/26706 https://gerrit.libreoffice.org/26724 https://gerrit.libreoffice.org/26739 https://gerrit.libreoffice.org/26743 https://gerrit.libreoffice.org/26755
(In reply to V Stuart Foote from comment #7) Thanks, no mention of PDFium in LibreOffice Help :-( I had to search the Internet for a while to discover the feature. Draw requires use of the Insert menu (never the File menu) to use PDFium with a PDF file … something like that?
*** Bug 157242 has been marked as a duplicate of this bug. ***
(In reply to V Stuart Foote from comment #5) > LibreOffice is not a PDF viewer or editor. I have recently given a presentation at LOCon about this very issue: https://app.box.com/s/9y6aiisdagyavppi4132qakt8fck2gif bottom line: LibreOffice is the most popular FOSS application people use to edit PDFs. And while it is not appropriate for precision edits of a PDF's structure - an office suite is quite well suited for tasks like editing the exported PDF from a web page. So that's not a valid argument. LibreOffice' import filter for PDFs is is simply faulty, and must be improved - for the benefit of many users and millions of potential users. It's as simple as that. Also, on an unrelated note: The hyperlinks are discarded also with the Writer import filter.