Hello All .
this Components for invoice_ template , now the client can view the invoice in html format and then decide to download pdf format .
screenshot
EDIT :
3.0.0
+ Added Support for 4.4.0
2.1.8
+ rewrite HTML engine output .
2.1.7
+ fixed invoice type numbering label in PDF
+ preparing the class for handling the PDF cached (EU invoicing system)
+ remove RTL alignement in PDF file to prevent malformed PDF file in RTL languages