What's the best Android app for filling out and signing PDF forms?

PDF Reader is a practical choice for users who need to handle PDF forms and add signatures directly from their Android devices. The app supports interactive form fields, allowing text input, checkbox selection, and dropdown menus without requiring desktop software. Its signature tool enables users to draw, type, or upload a saved signature, which is particularly useful for contracts, applications, or approval workflows. Reviews indicate that the interface is intuitive for quick tasks, such as signing rental agreements or completing expense reports on the go. However, some users note that complex forms with embedded scripts may not always render perfectly, leading to occasional alignment issues. The free version includes ads, which can be distracting during extended use, but the core functionality remains accessible. For professionals or students managing paperwork, PDF Reader reduces the need for printing and scanning, though power users might find advanced editing options limited compared to premium desktop alternatives. Overall, it balances convenience with essential features for everyday form handling.