Also, I found a different base64 encoding with a different font here:

ChocMontePy • yesterday at 6:22 AM • 2 replies • view on HN

This doesn't solve the "1 & l" problem for the pdf you are looking at, but it could be useful anyway.

JKCalhoun • today at 12:10 AM

File is gone now, hmmm…

ChocMontePy • yesterday at 7:18 AM

And this might be a copy of the original pdf:

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