1.3.3 Pictures

Embedded raster images (bitmaps) can be edited and replaced by the processed results. Unless the document author disables storing image editing data, the original bitmap and the processing parameters applied are stored in the imgProps extension (2.3.1.9) to enable non-destructive editing of the bitmap. For backward compatibility and performance, applications do not display changes made to the image-editing data for the embedded bitmaps unless the user edits them with the application UI or through the Object Model.

Bitmap pictures are resampled and compressed when inserted and saved based on document DPI. Individual bitmaps can be set to override the default document compression setting by using the useLocalDpi extension (2.3.1.13).

A user can insert embedded HTML, including online videos, into Word by storing the embedded HTML and related data into the webVideoPr extension (section 2.19.1.1).

A user can insert a Scalable Vector Graphics (SVG) illustration into Office documents by storing the relationship id(s) of the embedded and/or linked SVG data in the svgBlip extension (section 2.26.1.1). Embedded data is to be stored within an image part ([ISO/IEC29500-1:2016] section 15.2.14). For backward compatibility, Office applications embed a rasterized version of the SVG image (whether linked or embedded) in Portable Network Graphics (PNG) format and refer to the rasterized version from within the main blip.

A user can insert embedded web content into Word by storing a URL and associated data into the oembed extension (section 2.40.1.1).