Built-in PDF reader lag

Description of the issue:
Whenever I open PDFs in Brave’s PDF reader, the scrolling is extremely jittery. This is an important feature that should be smooth to use, as I don’t want to download every PDF I want to read or check out.

How can this issue be reproduced?

  1. Open any PDF in the built-in Brave PDF reader
  2. Scroll
  3. Terribly laggy, jittery

Expected result: No lag while scrolling, no jitter

Brave Version:
Version 1.19.86 Chromium: 88.0.4324.96 (Official Build) (x86_64)

i have the same issue with PDF

Unable to reproduce this. Im not having any problem while opening pdf’s.

Maybe you can send me one example to reproduce this problem?, Much appreciated

I’m not sure what kind of example? This happens with every PDF I open in Brave, either an online link or a local file, regardless of origin. Scrolling in FF’s viewer or my local PDF viewer is super smooth.

Maybe it’s the platform? It definitely happens on my macOS, though I think I’ve tested it on Manjaro Linux, too, I’ll check there again. Haven’t used it on Windows yet. The only other thing I can check is opening in Chrome, as Brave is based off Chromium and has similar behaviour to Chrome.

Ok thanks you. Lets wait to Brave’s staff. Maybe they can help

Not sure if this is the “correct” solution, but I managed to fix this by enabling the brave://flags/#pdf-viewer-update flag. You also get a sleek new PDF viewer with it!

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