https://pdffactory.mairuan.com/
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pdfFactory中文官网提供标准版、pdfFactory Pro(专业版)、FinePrint三款PDF虚拟打印机软件，用户可在线PDF编辑、批量打印PDF文件、双面打印且支持将一系列单独的文档合并成一个PDF文件等各种操作。
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https://forums.opera.com/topic/47775/opera-causing-pdffactory-and-abbyy-finereader-run-slow-that-i-have-notice/1
Opera causing PDFfactory and ABBYY FineReader run slow (that I have notice) | Opera forums
Mar 12, 2021 - I notice last week (I thing this happened sometime after 1st of March), that after I start Opera, PDFfactory and ABBYY FineReader run extremely slow. Things...