I would like to know if there exist a PDF version of Tripitaka which is compatible with an eBook reader(Kindle, Kobo alike)?
I am presuming you are looking for translations. There is the Buddha Jayanthi edition which has both Sinhala and Pali.
- http://dharmafarer.org/ - does not have all the Tripitaka but there is a growing number of Suttas in PDF form
- http://www.accesstoinsight.org/ - this has traslation by many and can be downladed in multiple formats in mulitple languages
- https://suttacentral.net/ - no PDF but mobile friendly. But has translations in multiple languages
- http://www.tipitaka.org/ - Pali text is many different scripts with PDF downloads
Sinhala (Since you name sounds like a Sinhalese name including including some in Singhala script)
As well as the suttas which are listed in this answer:
There are translations from the Vinaya linked here on Access to Insight (many of the PDFs are commentaries rather than translations).
This page (from 2005) of Access to Insight implies (though I don't know if that's true) that many of the Abhidhamma books haven't even been translated at all, let alone made available in eBook format. Still, there is at least A Manual of Abhidhamma, a commentary in PDF format. There are also translations of the Visuddhimagga (not sure whether that counts as tipitaka).
There are many PDFs at http://static.sirimangalo.org/pdf/ including suttas, Pali grammars, texts from the vinaya, dhammapada, jataka, etc.
There's an eBook library at http://www.buddhistelibrary.org/en/index.php?lang=english (which may have some books not found elsewhere, in its Theravada Texts category).
These Pali Text Society Publications are suttas in PDF format (actually they're ZIP files with a PDF inside, I don't know whether you can unzip on the Kindle, or need to download and then unzip before copying to Kindle).
You can find here some selected sutta translations from the Pali Canon, as translated by Thanissaro Bhikku to English, in the azw3, mobi, epub and pdf formats. With Kindle, please use the mobi format for best results.
Here's what you can find at this page:
- Handful of Leaves: an Anthology from the Sutta Pitaka, translated by Thanissaro Bhikkhu (revised Jan. 21, 2016)
- Handful of Leaves, Volume I: an Anthology from the Digha Nikaya, translated by Thanissaro Bhikkhu. (revised Jan. 17, 2016)
- Handful of Leaves, Volume II: an Anthology from the Majjhima Nikaya, translated by Thanissaro Bhikkhu. (revised Dec. 31, 2015)
- Handful of Leaves, Volume III: an Anthology from the Samyutta Nikaya, translated by Thanissaro Bhikkhu. (revised Dec. 31, 2015)
- Handful of Leaves, Volume IV: an Anthology from the Anguttara Nikaya, translated by Thanissaro Bhikkhu. (revised Jan. 19, 2016)
- Itivuttaka: This was said by the Buddha, translated by Thanissaro Bhikkhu. (revised Jan. 21, 2015)
- Udana: Exclamations, translated by Thanissaro Bhikkhu. (revised Jan. 21, 2015)
- Dhammapada: A Translation, translated by Thanissaro Bhikkhu. (revised Dec. 10, 2014; pdf revised Dec 16, 2015)
- Poems of the Elders: An Anthology from the Theragatha & Therigatha, translated by Thanissaro Bhikkhu. (revised Jan. 19, 2016)
- The Buddhist Monastic Code, Volumes I & II, translated and explained by Thanissaro Bhikkhu. (revised Jan. 10, 2014)