if you mean pdf.js, yes, it is a truly amazing product. 4D language documentation is 2000 pages yet it displays (with bookmarks and all) and scrolls extremely fast.
https://mozilla.github.io/pdf.js/ 2018/02/05 22:17、Jeffrey Kain via 4D_Tech <4d_tech@lists.4d.com<mailto:4d_tech@lists.4d.com>> のメール: We've modified the open source Mozilla Javascript PDF viewer (the same one Firefox uses) to work inside a web area. It's seamless and looks great. We're tweaking the source code now but drop me a line if you're interested in trying it out. It's just Javascript -- no plug-in required. ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************