When editing LaTeX, it is common practice not to check in the binary files or temporary files such as .pdf, .aux, .log, etc. Here is the way to set it: in the directory, type

svn pe svn:ignore .


The default editor will show up. Type in the patterns of files you want to ignore and save. A typical setting of LaTeX project folders is as follows.

*.aux
*.out
*.log
*.toc
*.bbl
*.blg
*.rel
*.synctex.gz
*.dvi
*.ps
*.pdf
*.bak
*.fmt
*.snm
*.nav
*~
auto