Update app.py

app.py

@@ -10,9 +10,11 @@ def rasterize_and_report(input_pdf):
         "gs",
         "-o", output_pdf,
         "-sDEVICE=pdfwrite",
+        "-dColorImageResolution=150",
+        "-dGrayImageResolution=150",
+        "-dMonoImageResolution=150",
         "-dFILTERVECTOR",
         "-dCompatibilityLevel=1.4",
-        "-dPDFSETTINGS=/printer",
         "-dNOPAUSE",
         "-dBATCH",
         "-dQUIET",