docs: Document resources proven useful for debugging

famoser · Jan 2, 2024 · c939af6 · c939af6
1 parent aedd88e
commit c939af6
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/resources/README.md b/resources/README.md
@@ -12,4 +12,9 @@ https://docs.microsoft.com/en-us/typography/opentype/spec/featurelist
 # PDF
 https://www.datalogics.com/products/pdftools/pdf-checker/  
 https://www.pdf-online.com/osa/validate.aspx  
-https://docs.verapdf.org/validation/pdfa-part1/
+https://docs.verapdf.org/validation/pdfa-part1/
+https://www.pdfen.com/convert-to-pdfa
+
+```
+mutool clean -d input.pdf output.pdf
+```