diff --git a/latex_commands.py b/latex_commands.py
index 4a418bd..168ad56 100644
--- a/latex_commands.py
+++ b/latex_commands.py
@@ -31,18 +31,21 @@ class LatexModule(commands.Cog):
     )
     @commands.has_any_role(*ALLOWED_ROLES)
     async def tex(self, ctx: commands.Context, include_source_excerpt: Optional[bool] = True):
+        self.logger.info("LaTeX command invoked by %s", ctx.author)
         ch = ctx.message.channel
         async with ch.typing():
             atts = [a for a in (ctx.message.attachments or []) if is_tex_attachment(a, LATEX_MAX_ATTACH_MB)]
             if not atts:
                 return await ctx.reply(f"Dołącz .tex (≤{LATEX_MAX_ATTACH_MB} MiB).", mention_author=False)
-
+            self.logger.debug("LaTeX attachments: %s", ", ".join(a.filename for a in atts))
             files: List[discord.File] = []
             parts: List[str] = []
             for att in atts:
                 try:
                     data = await att.read()
+                    self.logger.debug("LaTeX read %s bytes from %s", len(data), att.filename)
                     res = await compile_single_tex_bytes(data, att.filename, LATEX_TEX_ENGINE, LATEX_MAX_COMPILE_SECONDS, logger=self.logger)
+                    self.logger.debug("LaTeX result for %s: %s", att.filename, res)
                     self.logger.debug("LaTeX log (%s)\n%s", att.filename, (res["log_text"] or "")[-2000:])
                     if res["ok"] and res["pdf_bytes"]:
                         b = io.BytesIO(res["pdf_bytes"])