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Mark Atwood
Wonderfully amusing code comment, about Adobe PSD format

                 // At this point, I'd like to take a moment to speak to you about the Adobe PSD format.
                 // PSD is not a good format. PSD is not even a bad format. Calling it such would be an
                 // insult to other bad formats, such as PCX or JPEG. No, PSD is an abysmal format. Having
                 // worked on this code for several weeks now, my hate for PSD has grown to a raging fire
                 // that burns with the fierce passion of a million suns.
                 // If there are two different ways of doing something, PSD will do both, in different
                 // places. It will then make up three more ways no sane human would think of, and do those
                 // too. PSD makes inconsistency an art form. Why, for instance, did it suddenly decide
                 // that *these* particular chunks should be aligned to four bytes, and that this alignement
                 // should *not* be included in the size? Other chunks in other places are either unaligned,
                 // or aligned with the alignment included in the size. Here, though, it is not included.
                 // Either one of these three behaviours would be fine. A sane format would pick one. PSD,
                 // of course, uses all three, and more.
                 // Trying to get data out of a PSD file is like trying to find something in the attic of
                 // your eccentric old uncle who died in a freak freshwater shark attack on his 58th
                 // birthday. That last detail may not be important for the purposes of the simile, but
                 // at this point I am spending a lot of time imagining amusing fates for the people
                 // responsible for this Rube Goldberg of a file format.
                 // Earlier, I tried to get a hold of the latest specs for the PSD file format. To do this,
                 // I had to apply to them for permission to apply to them to have them consider sending
                 // me this sacred tome. This would have involved faxing them a copy of some document or
                 // other, probably signed in blood. I can only imagine that they make this process so
                 // difficult because they are intensely ashamed of having created this abomination. I
                 // was naturally not gullible enough to go through with this procedure, but if I had done
                 // so, I would have printed out every single page of the spec, and set them all on fire.
                 // Were it within my power, I would gather every single copy of those specs, and launch
                 // them on a spaceship directly into the sun.
                 // PSD is not my favourite file format.
5 comments or Leave a comment
dossy From: dossy Date: April 23rd, 2009 12:48 am (UTC) (Link)
Having personally written a few small utilities that read and wrote PSD files back in the days of Photoshop 5, I can both sympathize and reiterate what the original commenter wrote.

It's amazing that Photoshop CS4 can still round-trip data from PSD files without munging it somehow.
jmboyles From: jmboyles Date: April 23rd, 2009 04:28 am (UTC) (Link)
...oh dear. Based on this description, it sounds like your ex is a PSD file.
perldiver From: perldiver Date: April 23rd, 2009 06:17 pm (UTC) (Link)
I have been fortunate enough not to have to deal with PSD files, but I've worked with PDF quite a bit and found that just as aggravating. I share your pain and that of this author.
lishablog From: lishablog Date: April 23rd, 2009 08:58 pm (UTC) (Link)

But wait! It get's better!!

Did you see the guy's commit message?

 r11  by paracelsus on Sep 11, 2007   Diff
Photoshop loader is DONE for now, fuck you

Muahahahahahah!!! Oh, man. Stick it to 'em, why doncha.
From: (Anonymous) Date: July 16th, 2009 10:43 am (UTC) (Link)
Perfect search results.. I wanted a starting point on parsing PSD files but what I got instead is a reason why I don't actually want to parse them at all :)

Thank you Mark
5 comments or Leave a comment