A modified version of ZXText2P to add a -d option to collapse the display file in the P file so that it can fit on a 1K ZX81.
From chapter 27 of the ZX81 manual:
When the total amount of memory (according to the system variable RAMTOP) is less than 3 1/4 K, then a clear screen - as set up at the start or by CLS - consists of just twenty five NEWLINEs. When the memory is bigger than a clear screen is padded out with 24*32 spaces
The original ZXText2P can be found at http://freestuff.grok.co.uk/zxtext2p/index.html.