pdf_signature/docs/FRs.md

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# Functional Requirements
## user stories
* name: [PDF browser](../test/features/pdf_browser.feature)
* role: user
* functionality: view and navigate PDF documents
* benefit: select page to add signature
* name: [load signature picture](../test/features/load_signature_picture.feature)
* role: user
* functionality: load a signature picture file
* benefit: easily add signature to PDF
* name: [geometrically adjust signature picture](../test/features/geometrically_adjust_signature_picture.feature)
* role: user
* functionality: adjust the size and position of the signature picture
* benefit: ensure the signature fits well on the PDF page
* name: [graphically adjust signature picture](../test/features/graphically_adjust_signature_picture.feature)
* role: user
* functionality: background removal, contrast adjustment...
* benefit: easily improve the appearance of the signature on the PDF without additional software.
* name: [draw signature](../test/features/draw_signature.feature)
* role: user
* functionality: draw a signature using mouse or touch input
* benefit: create a custom signature directly on the PDF if no pre-made signature is available.
* name: [save signed PDF](../test/features/save_signed_pdf.feature)
* role: user
* functionality: save/export the signed PDF document
* benefit: easily keep a copy of the signed document for records.
* name: [preferences for app](../test/features/app_preferences.feature)
* role: user
* functionality: configure app preferences such as `theme`, `language`.
* benefit: customize the app experience to better fit user needs
* name: [remember preferences](../test/features/remember_preferences.feature)
* role: user
* functionality: remember user preferences for future sessions
* benefit: provide a consistent and personalized experience
* name: [internationalizing](../test/features/internationalizing.feature)
* role: user
* functionality: app provide localization support
* benefit: improve accessibility and usability for non-English speakers