pdf-diff is queued for analysis. Crawling candidates and ranking them takes a few minutes. This page updates itself when the list exists — you can also come back later.
What is known so far comes from the other direction:
These projects were analysed and named pdf-diff among their alternatives. The relationship is not symmetric — how pdf-diff rates them is a separate judgement, made when pdf-diff is analysed in its own right.
calls pdf-diff “Choose when the files to compare are rendered PDF documents rather than source text files.”
WinMerge is an Open Source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.