Hi Rheves - Thanks for the info. I tried to reproduce your problem on my system, and, couldn't really do so. For the record, my system is Win 8.1 (64 bit), 64 GB of RAM, fast i7, 64 bit PS CC 2015. Unfortunately, I don't have CS6 installed on this system, so I couldn't check if there is any difference between it and CC 2015.
Here is the testing procedure I used: First, using http://www.lipsum.com/feed/html , I generated large blocks of "Lorem Ipsum" plain text, each of which was slightly larger than the following size: 111 paragraphs, 10k words, 67k characters (ie, 1 byte = 1 character). Each block of text was slightly larger than this value because I duplicated the last three summary lines several times to be able to easily identify each block of text once it was pasted into PS. From there, I cut and pasted it into Ultra Edit, a text editor, to be sure only conventional ASCII characters were present, and double check the word and character count. (All was fine, this step turned out not to be necessary).
Next, I opened a new 5000 (h) x 9000 (v) pixel, 8bpc, blank document, drew a text box that occupied most of the PS document, and pasted the text into the text box a few times until it nearly filled up. Each pasting operation took about 3 or 4 seconds to complete and went without a glitch.
Three copies of the above text just about filled it up the PS document. This is slightly more than 30,000 words or ~200,000 characters (incl. spaces, paragraph returns, etc.), ie, several times than the limit you encountered.
The only way I could induce a problem in pasting text into PS was if the size of my PS document was so small that the pasted text wound up being under 3 or 4 points in size, ie each character being about the same number of pixels high. In this case, PS simply truncated the text, but never hung.
It occurred to me that you might be trying to put that much text into such a small document as some sort of graphic feature, and hence not put have any spaces or paragraph returns in your text, so I tested this by stripping out all spaces between words, and all paragraph returns in the main body of each chunk of text, leaving only the final paragraph return(s) present. This indeed caused a problem. I didn't explore either of the above situations in any detail, but just noted that they are problematic.
HTH,
Tom M
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