https://bugs.kde.org/show_bug.cgi?id=516009
Bug ID: 516009
Summary: Add Poster Printing (Tiled Printing) with Live Preview
Classification: Applications
Product: okular
Version First unspecified
Reported In:
Platform: Mint (Ubuntu based)
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: printing
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 189597
--> https://bugs.kde.org/attachment.cgi?id=189597&action=edit
poster_feature
SUMMARY Add native poster printing (tiled printing) capability to Okular. This
feature allows users to scale up a document and print it across multiple
physical sheets of paper, which can then be assembled into a larger poster.
STEPS TO REPRODUCE
Open a document (e.g., a PDF) in Okular.
Select File -> Print (Ctrl+P).
Click on the "Options" or "Properties" button to see the Okular-specific print
options.
Change the "Print Mode" from "Fit to printable area" to "Poster".
Adjust "Tile Scale" (e.g., 200%) and "Overlap" as desired.
Enable "Draw Cut Marks" and "Draw Labels" for easier assembly.
Observe the live preview on the right side of the dialog.
Click "Print".
OBSERVED RESULT Currently, Okular only supports "Fit to printable area", "Fit
to full page", and "Multiple pages per sheet (N-Up)". To print a poster, users
must rely on external tools or specialized printer drivers, which often lack a
live preview of how the tiles will be cut.
EXPECTED RESULT Okular should provide a built-in "Poster" mode that handles the
tiling logic internally, providing a live preview of the grid,
mandatory/optional overlap regions, and helper marks (cut marks/labels) to
facilitate the creation of large-format prints from standard desktop printers.
SOFTWARE/OS VERSIONS Windows: (Please fill if applicable) macOS: (Please fill
if applicable) Linux/KDE Plasma: Linux (CachyOS/Ubuntu/Debian - please specify
your distro) KDE Plasma Version: (Check in Info Center) KDE Frameworks Version:
(Check in Info Center) Qt Version: (Check in Info Center)
ADDITIONAL INFORMATION This feature has been implemented with a dedicated
PosterPrinter
class and a
PosterPreviewWidget
for real-time visual feedback. The preview shows:
The page grid.
Overlap areas (shaded).
Tile coordinates (if enabled).
Example preview image:
https://github.com/3ddruck12/okular/raw/work/poster-printing/okularposter.png
Implementation branch:
https://github.com/3ddruck12/okular/tree/work/poster-printing
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