Bug 446184

Summary:	Process 'Print Preview' only for current page and display immediately
Product:	[Applications] okular	Reporter:	dalmarla
Component:	PDF backend	Assignee:	Okular developers <okular-devel>
Status:	REPORTED ---
Severity:	wishlist	CC:	acrylint
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Flatpak
OS:	ChromeOS
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description dalmarla 2021-11-28 07:17:27 UTC

Running Flatpak version Okular 5.15 in Linux subsystem (Debian Buster) of ChromeOS 93.

Loading a 98-page magazine in PDF format is pretty quick and looks good in facing-page mode. But...

Going to page 50 and clicking on Print Preview, it takes several minutes for the process to display the preview and it starts at page 1.   Apparently the preview for the whole document has been prepared.

To save time and cpu, it would be better to just compute and display the preview of the current page immediately and continue preparing other pages if I scroll the preview to see them.