Open Bug 1470409 Opened 3 years ago Updated 1 year ago

Visual glitches are triggered on zoom inside a Pdf. file

Categories

(Firefox :: PDF Viewer, defect, P3)

Product:
Firefox
Component:
PDF Viewer
Type:
defect

Tracking

()

Tracking Flags:
Tracking Status
firefox-esr52 --- affected
firefox-esr60 --- affected
firefox60 --- affected
firefox61 --- affected
firefox62 --- affected
firefox66 --- affected
firefox67 --- affected
firefox68 --- affected
firefox69 --- affected
firefox70 --- affected
firefox71 --- affected
firefox72 --- affected
firefox73 --- affected
firefox74 --- affected
firefox75 --- affected
firefox76 --- affected

People

(Reporter: Anca, Unassigned)

Details

(Whiteboard: [pdfjs-c-performance])

Attachments

(1 file)

screencast search issue.gif
9.51 MB, image/gif
Details 
[Affected versions]: 
- Firefox 61.0.
- Firefox 62.0b2 - dev edition
- Firefox 62.0a1 (2018-06-21)

[Affected platforms]:
- Mac OS 10.10
- Ubuntu 16.04 x64
- Windows 10 x64

[Steps to reproduce]:
1. Go to an image-rich Pdf file ( eg. http://www.cambridgeenglish.org/images/153310-movers-sample-papers-volume-2.pdf )
2. Zoom in and out inside the pdf. sample

[Expected result]:
- The zoom in/out proceeds smoothly, no glitchers occurs in the process. 

[Actual result]:
- Visual glitches are triggered at around 500% zoom level.

[Regression range]:
- This doesn't seem to be a regression, I see this behavior on Firefox 48.0a1 also. I will investigate this later for more accurate conclusion.
This looks like just delays in PDF rendering. Doesn't look like an APZ bug.
Component: Panning and Zooming → PDF Viewer
Product: Core → Firefox
We first handle zoom by just using css scaling and then re-render the pdf.
Priority: -- → P3
Whiteboard: [pdfjs-c-performance]
Hi!

I've encountered the following issue on Ubuntu 16.04 x32 and Win 7 x32:

I've accessed https://bug1303534.bmoattachments.org/attachment.cgi?id=8792203 and using the Ctrl+mouse scroll played with the zoom in/out function by quickly changing the zoom level. Usually after a few tries when it reached around the 500% zoom level the page turned completely white.

On Win 10 x64 the issue was reproducible for a few seconds after which the .pdf was showing at the correct zoom in level.


Is the above issue related to this bug or should I file a new one?
The issue described in Comment 3 was reproduced on the latest Nightly (63.0a1), Beta (62) and Release also.

Reproducible on windows 7 x32 using Firefox Nightly 68.0a1, Firefox 67.0b17 and Firefox 66.0.4.

status-firefox66: --- → affected
status-firefox67: --- → affected
status-firefox68: --- → affected

Reproducible on latest Nightly build 70.0a1 (2019-07-16) (32-bit) on Windows 8.

status-firefox70: --- → affected

Change the status for beta to have the same as nightly and release.
For more information, please visit auto_nag documentation.

status-firefox69: --- → affected

Reproducible on latest Nightly build 71.0a1 (2019-10-14) (64-bit) on Windows 7.

status-firefox71: --- → affected

Reproducible on latest Nightly build 73.0a1 (2019-12-09) (64-bit).

status-firefox73: --- → affected

Still reproducible on 76.0b2 and below, macOS 10.15.

status-firefox74: --- → affected
status-firefox75: --- → affected
status-firefox76: --- → affected
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