php - How to create pdf files in drupal? -

i want create pdf files in drupal .module file.

i have view of bulk operations in have added operation send pdf file , download pdf file. want data database , and create pdf file , when select operations should create , send pdf file in email.

so how this???

after doing quick search @ drupal modules found this module. , found this googling. latter 1 seems need no additional php modules , should easy integrate.