The free PDF-XChange Editor enables users to also try the advanced features available in PDF-XChange Editor PRO in a free evaluation mode. I love its smooth and fast work, and nice UI, and very detailed features. PDF-XChange Editor Plus is a hugely dynamic and feature-rich program for creating, viewing and editing PDF and image files. PDF-XChange Editor, successor of PDF-XChange Viewer, is leaner, faster, and more feature-rich than any other free PDF viewer or editor currently available. But, in PDF-XChange, functionality + quality of performance + price + speed + support were the best.

I had tried another 'competitors', some were free, some offered more features.

Full Page Text Content Editing, Extended OCR options, OCR, Google Drive, One Drive, Microsoft Office, SharePoint, Dropbox, Box.com Support, Spellchecker, Expanded XFA forms support, Listen/add audio comments, Add/Edit/Move Bookmarks, View embedded Multimedia support, Significantly improved rendering and page load speed, New Extended Digital Signature Support, PDF Security Support, Add Comments and Annotations, Add & apply Custom Stamps, Direct Content Editing (Paths & Images), Combine PDFs open/closed pdfs, Import Directly from XPS and other support formats, Bates Numbering, Send PDF files via email, Crop/Insert/Delete Pages, Scan Direct to PDF, Compatible with Windows XP and later, Plug-Ins for both MS IE or Firefox Browser's, Fastest Document search, Convert PDF to Power Point, Portfolio Create and Support, 3D annotation, Plug-in, PDF Optimization, Full Java-script engine included, Plug-Ins for both MS IE or Firefox Browser's included, Combine PDFs open/closed pdfs, Import Directly from XPS and other support formats. Viewer, then Editor, are the best softwares for my daily work with documents.

Pdf xchange viewer 64 bit