PDF Max is a desktop class PDF app for reading, annotating or signing PDF documents on your iPhone/iPad. Mark up documents with highlights and handwriting, insert texts and stamps, fill out, sign PDFs and even manipulate PDF pages.




KDAN PDF is described as 'Comprehensive, AI-powered document solution that enables professional PDF editing, conversion, and intelligence analysis across Windows, Mac, iOS, and Android' and is a very popular PDF Reader in the office & productivity category. There are more than 100 alternatives to KDAN PDF for a variety of platforms, including Windows, Web-based, Mac, Linux and Android apps. The best KDAN PDF alternative is SumatraPDF, which is both free and Open Source. Other great apps like KDAN PDF are Okular, Foxit PDF Reader, Evince and PDF-XChange Editor.
PDF Max is a desktop class PDF app for reading, annotating or signing PDF documents on your iPhone/iPad. Mark up documents with highlights and handwriting, insert texts and stamps, fill out, sign PDFs and even manipulate PDF pages.




Infix PDF editor lets you open, edit and save PDF files. It’s easy and quick – you can change text, fonts, images and more. And, unlike other PDF editors, it works like normal word processing software, so it’s really easy to use.





Open-source PDF viewer and editor using Qt framework, featuring hardware-accelerated rendering, encryption, multithreading, text-to-speech, annotation tools, form filling, high-res monitor support, document compression, audio book conversion, and signature validation.


Allowing both the creation (from Image file formats, Image Scanners/Web CAMS and text files etc) and manipulation of Adobe compatible PDF files, PDF-Tools is an ideal tool to compliment your existing PDF creation application or as a stand alone tool in its own right!

Edit, create, and convert PDFs from Word, Excel, and PowerPoint; batch conversion, annotation, OCR, password protection, page organizing, and seamless Microsoft Office toolbar integration with an updated user interface for enhanced office productivity.

Revolutionize PDFs for free! Try PDFPro: advanced editing, annotating, converting, signing. Premium tools, cloud support, secure.




Apryse, previously known as PDFTron, takes document solutions to the next level, making work better and life simpler.










Offers viewing, searching, printing, and text copying for PDF files on Android. Streamlined for quick access and on-the-go use, optimized for work environments without Drive integration, lightweight, free, and requires minimal permissions.




Orion is a pdf, djvu, xps and cbz file viewer for Android devices, based on mupdf and DjVuLibre libraries.



