Sanskrit: ॐ पितॄणां स्वधा नमः तर्पयामि। English: Om Pithrunam Swadha Namah Tarpayami. (Pour one handful of water)
Classical texts restrict certain Vedic mantras to men. However, many modern "new" PDFs include a supplementary section for women using Puranic mantras. Always follow your family tradition.
The shift from palm-leaf manuscripts to a is a cultural preservation movement. Several organizations are currently crowdsourcing error-free PDFs:
(Note: Replace [Gotra] with your Gotra and [Name] with your name.)
: While the primary link is in English, they offer a Sanskrit PDF version for download that contains the phonetic and Devanagari text for rituals like Pithru Varga Tharpanam .