Suggestions for xsavebox

The following packages have something in common with the package xsavebox. The packages are ordered in decreasing similarity.

Package ocgx2: Drop-in replacement for ocgx and ocg-p
Package rmannot: Create rich media annotations in a PDF file
Package fixocgx: Add support for dvips+ps2pdf, XeLaTeX, dvipdfmx to the ocgx package
Package forms16be: Initialize form properties using big-endian encoding
Package opacity-pro: Set transparency and blend mode
Package qrcstamps: Create QR codes using stamps
Package annot-pro: Create text, stamp and file attachment annotations
Package aebenvelope: The AeB Pro eEnvelope System
Package hyperref: Extensive support for hypertext in LaTeX
Package datepicker-pro: Create a popup datepicker using SWF
Package acroflex: Create a graphing widget in a PDF file
Package aeb-pro: Items from the AeB Pro Family of Software
Package fc-arith: Create an arithmetic flash card
Package fitr: Set a rectangular destination and jump to it
Package jj-game: A LaTeX class to construct Jeopardy-like games
Package grayhints: Produce gray hints to a variable text field
Package xbmks: Create a cross-document bookmark tree
Package mkstmp_pro: Provides a simple workflow for creating custom stamps
Package fldigigal: Create a Flash slide show of digital photos
Package attachfile2: Attach files into PDF
Package attachfile: Attach arbitrary files to a PDF document
Package pdfmarginpar: Generate marginpar-equivalent PDF annotations
Package repltext: Control how text gets copied from a PDF file
Package hypgotoe: Links to embedded files
Package ascmac: Boxes and picture macros with Japanese vertical writing support
Package dashbox: Draw dashed boxes
Package eqparbox: Create equal-widthed parboxes
Package fbox: Extended \fbox macro from standard LaTeX
Package fancybox: Variants of \fbox and other games with boxes
Package longfbox: Draw framed boxes with standard CSS attributes that can break over multiple pages
Package minibox: A simple type of box for LaTeX