You can fill out forms and sign documents that you receive on your iPhone. After you complete a form, you can add your signature and share it with others.Simply open the PDF file on your iPhone or iPad. If you're prompted to save the document in the Files app, choose a folder and tap Save. Log in to your account with your library card number in the upper right-hand corner. Click on your username in the upper right-hand corner, then on Checked Out. Go to the Notes app on your iPhone. In a note, tap the Attachments button , then tap Scan Documents. Open the Settings app for your iPhone or iPad. Please accept this letter as my expression of extreme opposition to the proposed use of 15090.