Minify pdf.js

README.md

@@ -8,4 +8,13 @@ PDF.js is community-driven and supported by Mozilla. Main goal is to create a ge
 
 ## Changes
 
-Changes made to the pdf.js v3.10.111 legacy prebuild can be seen from https://gitea.rkg.lv/yellowmonarch/pdf.js/commit/2dca5acb42913874baaad4d377a3be675978ba13
+Changes made to the pdf.js v3.10.111 legacy prebuild can be seen from https://gitea.rkg.lv/yellowmonarch/pdf.js/commit/2dca5acb42913874baaad4d377a3be675978ba13
+
+## Compression
+
+Minified, using (installed via `npm`):
+
+```sh
+css-minify --file viewer.css -o out
+uglifyjs pdf.js -o pdf.js --source-map
+```