This is the only iPhone
pdf app I can find which will read and use fillable forms created by Adobe Acrobat and opened on your iOS
device. Other apps show the completed fillable form as empty-not PDF Expert.
PDF Expert lets you read and annotate PDF documents, highlight text, make notes, draw with your finger and save these changes being compatible with Preview and Adobe Acrobat. Moreover, PDF Expert is the only iPad application that can fill PDF forms!
PDF Expert does read almost all document types like: iWork, MS Office, Power Point, text files, images, even music and video files, etc.
PDF Expert can get documents from any place you may need. PDF files from desktop computers, email attachments, documents on the Dropbox, MobileMeiDisk, GoogleDocs and even in other iPad applications could be accessed with PDF Expert.
Annotations made with PDF Expert are saved within the document in accordance with PDF format specification. Thus PDF Expert can edit highlights, text notes and other annotations created in Apple Preview or Adobe Acrobat Reader and vise versa. At the same time this lets you share annotated files with friends and co-workers.
PDF forms made with Adobe Acrobat are supported in PDF Expert. Text fields, check boxes, radio buttons and other form elements work as you expect and all information you entered is saved inside the form. Please note that Dynamic XML PDF Forms made with Adobe LifeCycle should be converted to Static PDF Forms format before using with PDF Expert.
There are separate versions for iPhone and iPad. Each costs just $9.95.