Show HN: Tetris in a PDF • Hacker News Board

Re: Show HN: Tetris in a PDF

#201

Post by aceazzameen » Fri, Jan 10, 2025, 3:56 PM UTC

ustad wrote: post #172

That reminded to disable javascript in pdfjs that is used in firefox. Feel much safer!

Whew! I didn't realize it was enabled already.

Re: Show HN: Tetris in a PDF

#202

Post by ninalanyon » Fri, Jan 10, 2025, 4:12 PM UTC

I'm very pleased that this did not work in Firefox on Linux Mint. Unfortunately it does work in Vivaldi.

Re: Show HN: Tetris in a PDF

#203

Post by wizzwizz4 » Fri, Jan 10, 2025, 4:22 PM UTC

_bydex wrote: post #151

I dont have a kindle to test, but i wonder if this works on a kindle

Almost certainly not. Kindle's native format is MOBI, not PDF.

Re: Show HN: Tetris in a PDF

#204

Post by enews01 » Fri, Jan 10, 2025, 4:39 PM UTC

Wow this was quite fun and impressive! Looks like it doesn't work on Firefox, I wonder why.

Re: Show HN: Tetris in a PDF

#205

Post by enews01 » Fri, Jan 10, 2025, 4:43 PM UTC

efitz wrote: post #94

This is amazing and terrifying (I am a security engineer and parsing complex document formats is a never-ending treasure trove of vulnerabilities).

Theres a malaysian movie where the main premise is a hacker who uses pdf executions to steal one cent from every persons bank account. Its pretty interesting.

Re: Show HN: Tetris in a PDF

#206

Post by slig » Fri, Jan 10, 2025, 4:46 PM UTC

ta1243 wrote: post #186

tbraydn wrote: post #164

Earlier quoted context omitted.

A surprising number of things used to accept executable code. In Microsoft Windows (~2000/ME), you used to be able embed JavaScript and ActiveX into ANY folder by replacing the folder view with your own HTML. Your customization would persist on shared network folders so others would see your HTML. So naturally, a bunch of us 14 year olds in like 2002, between playing Runescape and Neopets in computer lab and library…

You put the in right? Or had that been fixed by the DHTML era

I used to place that as the home page of IE.

Re: Show HN: Tetris in a PDF

#207

Post by rhokstar » Fri, Jan 10, 2025, 4:46 PM UTC

I would be surprised if Doom was playable in a PDF that was being read in a LCD screen of a thermometer.

Re: Show HN: Tetris in a PDF

#208

Post by jancek27 » Fri, Jan 10, 2025, 4:51 PM UTC

enews01 wrote: post #204

Wow this was quite fun and impressive! Looks like it doesn't work on Firefox, I wonder why.

Just played it on Firefox. Maybe we have different browser settings?

Re: Show HN: Tetris in a PDF

#209

Post by a3w » Fri, Jan 10, 2025, 4:52 PM UTC

internetter wrote: post #22

Atari Breakout for PDF: https://cdn.jsdelivr.net/gh/osnr/horrifying-pdf-experiments@...

I see only a red half of the page, and then two pages of text.

Re: Show HN: Tetris in a PDF

#210

Post by julian37 » Fri, Jan 10, 2025, 4:52 PM UTC

enews01 wrote: post #204

Wow this was quite fun and impressive! Looks like it doesn't work on Firefox, I wonder why.

Works fine here (134.0 on macOS)