qPDF Notes is an Android PDF reader and markup tool that can annotate PDF documents, fill form fields, and save your changes. Saved documents are fully compliant with the international PDF standard ISO 32000-1 and Adobe Acrobat. It allows you to add graphical comments, sticky notes, text notes, and text markup (highlight, cross out, and underline). An efficient table view is provided for fast filling of forms. The interface supports multi-touch pinch to zoom, double tap to fit to screen width, continuous page view, and fast PDF search. PDFs can be sent by corporate email and to Dropbox, Evernote, or Bluetooth.
qPDF Viewer is a fast and powerful PDF reader and document search app. It is built on a proprietary PDF engine and provides fast, high fidelity rendering of even password protected files, fast PDF search, continuous page view for easy navigation, multi-touch pinch to zoom, double tap to fit to screen width, a customizable toolbar, no requirement for an SD card, and full support for the PDF standard.
qPDF Toolkit is an Android Java SDK that allows app developers to quickly add PDF functionality to their apps. It provides a wide range of functions that can be used by apps to create custom PDF documents and reports, to allow users to modify documents, and to show PDF content to end users. It can add content to new or existing pages, assemble, split, merge, and combine documents, remove pages, encrypt documents using RC4 or AES, set document permissions, set and get interactive form field data, convert documents to JPEG and PNG images, render pages to Bitmap or Canvas objects, extract text content, and edit document properties.