The best replacement for adobe is corel.

The best alternatives to adobe are rated as following:
★★★★★  corel
★★★★  apple
★★★  final cut
★★★  nitro
★★★  srgb
★★★  foxit
★★★  acrobat
★★  avid
★★  macromedia
★★  cob
★  aperture
★  stucco
★  pinnacle
★  nuance
★  autodesk
★  bluebeam
★  reader
★  final cut pro
★  sony vegas
  corel draw
  adobe
  foxit reader
  quark
  preview
  silverlight
  macromedia flash
  corel which is better
  vegas
  publisher
  srgb color space
  acrobat reader
  serif
  corel photoshop
  nuance pdf

Your alternative for adobe is not listed? Suggest!
Speaking about adobe, one probably shouldn't forget about ocr.

Other search terms related to adobe and their ratings are:
★★★★★ ocr
★★★ mavericks
★★★ highlighter tool
★★ mcafee
★★ editing
★ digital signature
★ electronic signature
★ flash
★ yahoo toolbar
pdf
pdf converter
flash player
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Google Trends

Scale is based on the average worldwide traffic of adobe in all years. Click on graph for more.
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