There is a new pull request by emacsomancer against master on the void-packages repository

https://github.com/emacsomancer/void-packages pdfpc-brokenkeys
https://github.com/void-linux/void-packages/pull/12693

pdfpc: update to 4.3.4
fixes https://github.com/void-linux/void-packages/issues/12692

A patch file from https://github.com/void-linux/void-packages/pull/12693.patch is attached