The risk-to-reward ratio is terrible. You expose your machine to keyloggers and ransomware for a piece of software that is nearly two decades old. The "portable" feature is rarely genuine, and most claim to be portable but still leave junk in %TEMP% .
Microsoft does not offer an official "portable" version of Microsoft Office Picture Manager 2007 download microsoft office picture manager 2007 portable
Be cautious when downloading "Portable" versions of Microsoft software — they are unofficial repacks (since Microsoft never officially released Picture Manager 2007 as portable). Always scan downloaded .exe or .zip files with VirusTotal before running. Consider using IrfanView (Portable) or GIMP Portable as free, legal alternatives. The risk-to-reward ratio is terrible