diff --git a/src/formatitko/html_generator.py b/src/formatitko/html_generator.py
index 18f13e4..7380a1b 100644
--- a/src/formatitko/html_generator.py
+++ b/src/formatitko/html_generator.py
@@ -138,10 +138,11 @@ class HTMLGenerator(OutputGenerator):
 			# processing contains finding and moving them to the output
 			# directory.
 			url = self.imageProcessor.process_image(url, ext, source_dir, **additional_args)
-		elif ext in ["pdf", "epdf"]:
-			if not "dpi" in additional_args:
-				additional_args["dpi"] = 300
-			url = self.imageProcessor.process_image(url, "png", source_dir, **additional_args)
+		elif ext in ["pdf", "epdf","asy"]:
+			# Only relevant for when these were PNGs, leaving this here for future reference.
+			# if not "dpi" in additional_args:
+			#	additional_args["dpi"] = 300
+			url = self.imageProcessor.process_image(url, "svg", source_dir, **additional_args)
 		elif ext in ["jpg"]:
 			url = self.imageProcessor.process_image(url, "jpeg", source_dir, **additional_args)
 		else:
diff --git a/src/formatitko/images.py b/src/formatitko/images.py
index 7623315..3f31b00 100644
--- a/src/formatitko/images.py
+++ b/src/formatitko/images.py
@@ -7,12 +7,20 @@ from PIL import Image
 class FileInWrongDirError(Exception):
 	pass
 
-class InkscapeError(Exception):
+class ConversionProgramError(Exception):
 	pass
 
-class ImageMagickError(Exception):
+class InkscapeError(ConversionProgramError):
 	pass
 
+class ImageMagickError(ConversionProgramError):
+	pass
+
+class AsyError(ConversionProgramError):
+	pass
+
+
+
 class ImageProcessor:
 	def __init__(self, public_dir: str, web_path: str, cache_dir: str, *lookup_dirs: list[str]):
 		self.public_dir = public_dir
@@ -32,6 +40,9 @@ class ImageProcessor:
 		if full_path is None:
 			raise FileNotFoundError(f'Image {input_filename} not found in {self.lookup_dirs} or {source_dir}.')
 
+		if format == "jpg":
+			format = "jpeg"
+
 		# Locate all dependencies
 		deps_full = [full_path]
 		for dep in deps:
@@ -67,6 +78,21 @@ class ImageProcessor:
 			elif self.find_image(target_name, [source_dir]) is not None and not self.is_outdated(self.find_image(target_name, [source_dir]), deps):
 				shutil.copyfile(self.find_image(target_name, [source_dir]), target_path)
 
+			# Process asymptote
+			elif ext == "asy":
+				# Collect dependencies
+				deps_dir = self.cache_dir + "/" + name + "_deps"
+				if not os.path.isdir(deps_dir):
+					os.mkdir(deps_dir)
+				for dep_full in deps_full:
+					dep = os.path.basename(dep_full)
+					if not os.path.isfile(deps_dir + "/" + dep) or os.path.getmtime(deps_dir + "/" + dep) < os.path.getmtime(dep_full):
+						shutil.copyfile(dep_full, deps_dir + "/" + dep)
+				dpi_arg = ['-render', str(dpi/72)] if dpi is not None else []
+				if subprocess.run(['asy', name, '-o', target_name, '-f', format, *dpi_arg], cwd=deps_dir).returncode != 0:
+					raise AsyError(f"Could not convert '{full_path}' to '{format}'")
+				shutil.move(deps_dir + "/" + target_name, self.cache_dir + "/" + target_name)
+
 			# Convert SVGs using inkscape
 			elif ext == "svg":
 				width_arg = ['--export-width', str(width)] if width is not None else []
@@ -125,3 +151,6 @@ class ImageProcessor:
 		for dir in [*self.lookup_dirs, *additional_dirs]:
 			if os.path.isfile(dir + "/" + input_filename):
 				return dir + "/" + input_filename
+	
+
+
diff --git a/test/test-files/circle.asy b/test/test-files/circle.asy
new file mode 100644
index 0000000..fe099f8
--- /dev/null
+++ b/test/test-files/circle.asy
@@ -0,0 +1,2 @@
+import graph;
+draw(Circle((0,0),20)); // graph - Circle
diff --git a/test/test-files/test-partial.md b/test/test-files/test-partial.md
index f50fa23..9e63376 100644
--- a/test/test-files/test-partial.md
+++ b/test/test-files/test-partial.md
@@ -48,6 +48,7 @@ I am a duck.
 This should be only shown to included cats.
 :::
 
+![A circle diagram](circle.asy){width=50px}
 
 $$
 \def\eqalign#1{NO, just, nooooo}