NitrosPDF Pro is a premium PDF app designed to easily store, read, annotate & fill out PDF forms on your iPhone/iPad. Markup text, draw with your finger or type over PDF pages! Fill out, Sign, Stamp & Flatten PDF forms. Smart zoom, Sepia/Night mode, text to speech and text reflow bring you a great reading experience like never before.

PREMIMUM PDF READER
- High-speed PDF rendering with large PDF files support
- Tabbed Document UI.
- Superior Text To Speech.
- Auto-Cropping mode with one tap
- PDF Text Reflow
- Different reading modes: Day, Night and Sepia
- Smooth vertical scrolling
- Bookmark management
- Intuitive & Easy-to-use UI that optimized for both iPhone/iPad.


PREMIUM PDF ANNOTATOR
- Full set of annotating tools: Markups, Handwritings, Highlights, Freetexts, Shapes, Sticky Notes.
- Create Freetexts from iOS Clipboard.
- Threaded-comments for easily collaborating.


PREMIUM PDF FORM-FILLTER
- Fill out AcroForms & XFA Static PDF Forms.
- Support almost common Adobe Form Fields (Text Fields, Checkboxs/Radios/Buttons, Signature Fields, Auto-Calculated Fields, Image Fields, Combo/List Fields)
- Insert your signature or customer's signature
- Flatten PDF documents.

PREMIUM FILE MANAGER
- Display files in Thumbnail or List modes. Sort by Name, Modified Date or Size.
- Categorize files or folder by Color Tags or Favorites (Starred)
- Quickly access recent opened files.
- Unpack .zip file.
- Easily Import/Export to iCloud Drive and/or other cloud services (iOS8 only).