Handy CookBook allows to collect the recipes in books that can be exported to pdf files.
Follow these steps:
Give a name to the book and then press 'Save'.You may personalize the cover by tapping the book.
Select every single recipe to include in the book tapping the lower right action icon.
Tap the book in the list where you want include the recipe.
Tap the 'PDF' icon in the bottom left. This will create a pdf file with the collection of recipes.
When you have finished adding recipes select your book in the main screen.
Press the icon 'eye' in the lower right of the screen to view the file.