PAMFIXTRUNC(1)

💅 PAMFIXTRUNC 💅

okay bestie, so this is the manual page for pamfixtrunc, part of the Pamfixtrunc User Manual (that's the manual name, girl, it's in the title) — and honestly? This one's serving pure "retired icon" energy, so let's get into it.

✨ NAME ✨

pamfixtrunc — replaced by pamfix

🦋 DESCRIPTION 🦋

This program is part of Netpbm(1).

So here's the tea: pamfixtrunc got replaced in Netpbm 10.66 (March 2014) by pamfix(1). She's retired, she's living her best life, she said "not my era anymore."

pamfix with a -truncate option is literally the exact same thing as pamfixtrunc. Same girl, different name. But the glow-up is that pamfix has other options too, so she can repair other kinds of corruption as well. Versatile queen 💅

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Another change that came along with Netpbm 10.66, and this part is lowkey important so pay attention: an invalid sample value — and by that we mean a value greater than the maxval the image declares in its header — is now considered by the common Netpbm image reading facility (that's the one in libnetpbm) to be unreadable. Which basically means the file is treated as truncated. Like, the vibe check failed, the file's done.

In older Netpbm, that invalid sample value would just propagate straight on through to the output in a program such as pamfixtrunc. She'd carry it, no questions asked.

So, for example: in older Netpbm, a file with 100 rows and an invalid sample value in the 3rd row would pass through pamfixtrunc unchanged. But in Netpbm 10.66, pamfix -truncate with the same input would produce an output image with only 2 rows. 😭

Heads up, bestie: while it is not possible in 10.66 to cause pamfix to generate an invalid Netpbm image, you can use the -clip and -changemaxval options to avoid truncating the file in a case like this. So you got options, fr fr.

One more thing, and I'm saying this with love:

You should not make any new use of pamfixtrunc. And if you modify an existing use, you should upgrade to pamfixtrunc.

But — and this is the plot twist — note that if you write a program that might have to be used with very old Netpbm, pamfixtrunc is the only way to do that. So she's not completely irrelevant, iykyk. 👑

📜 DOCUMENT SOURCE 📜

This manual page was generated by the Netpbm tool makeman from HTML source. The master documentation is at

http://netpbm.sourceforge.net/doc/pamfixtrunc.html

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and that's the whole page, babes 🎀 this came from the netpbm documentation — the Pamfixtrunc User Manual(1) — so go forth, don't make new use of her, and stan pamfix instead. mwah 💖✨🦋