PDF SDK Comparison

Render/view
PDF SDK 5.1 ACTIVEX STANDARD ACTIVEX PROFESSIONAL
Render PDF to bitmap
Render PDF to Windows device context
Render PDF to Apple quartz context
Progressive processing
Access bookmarks
Get document- level action info
Perform document JavaScript
Open password-protected documents
Viewer preference
Access document-level attachment
Save document-level attachment to file
Get page label
Get metadata and doc properties Only doc properties
Get all fonts in a document
Get font dictionary
Get document trailer dictionary
Check whether a document contains form field
Check whether a PDF document is a portfolio PDF
Get wrapper document
Get page index
Get page dictionary
Check page transparency
Get content margin of a page
Get page boundaries (media box, crop box, etc.)
Get rotation
Perform page JavaScript
Disable JavaScript
Get page action
Get page thumbnail
Access low-level PDF objects
Get catalog dictionary
Get encryption dictionary
Access layer information
Reflow content to fit the device screen size