Extremely slow loading steam machine brochure

[samlh]

http://media.steampowered.com/store/steammachines/SteamMachinesBroc_WEB.PDF

I ran out of patience a couple minutes in.

Firefox 31.0a2 (2014-06-09)
"PDF f9d89da5f9d426088edf86f954afe29 [1.3 Adobe PDF Library 10.0.1 / Adobe InDesign CS6 (Macintosh)](PDF.js: 1.0.374)"

[CodingFabian]

Chrome PDF viewer hangs itself as well :) That PDF is a hogger

[yurydelendik]

It has really hi-res images in it (probably embedded them directly from the 10 mega-pixel camera :)

I'm note even sure why they added _WEB prefix to the file.

[samlh]

Yup, I'm not surprised. It may be a fun stress-test, though :).

I'm curious whether it's the sheer memory usage, or something else that kills the viewer. If so, I wonder if it is possible to decode at lower resolution for smaller temporary image size. Either way, I'm willing to give up this pdf as a lost cause.

[yurydelendik]

I see stripes 5475x1950 of CMYK JPEG images, lots of them.

If so, I wonder if it is possible to decode at lower resolution for smaller temporary image size.

The JPEG image could be decoded into image where 8x8 pixels replaced by single pixel. (It's easier for JPX -- the decoding can be stopped at resolutions that are smaller than original one by 2, 4, 8, etc. times) I was going to use this technique when page thumbs are painted.

[samlh]

Happily, the pdf eventually loads now. Firefox tab peak memory usage ~3GB. The speed is also much improved. Closing.