Is there a program for creating a flowchart with the ability to link pictures?

Question

Adobe

Required features of the program:

• attaching the start and end points of lines to blocks (we move the block - the connecting line also stretches);
  
• inserting images from a file using the place or link method (we change the source image file - the picture inside the scheme changes);
  
• different styles of arrows, lines and blocks.
  

Answer 1

Online service draw.io
But the pictures there are attached to the url, that is, they must be pre-loaded.

Answer 2

The Dia program meets these requirements.
This is how the diagram node is saved, which is an image from the "Downloads/1-1.png" folder (the path is relative to the location of the diagram file):

<dia:object type="Standard - Image" version="0" id="O1">
      <dia:attribute name="obj_pos">
        <dia:point val="21,18"/>
      </dia:attribute>
      <dia:attribute name="obj_bb">
        <dia:rectangle val="20.95,17.95;23.05,20.05"/>
      </dia:attribute>
      <dia:attribute name="elem_corner">
        <dia:point val="21,18"/>
      </dia:attribute>
      <dia:attribute name="elem_width">
        <dia:real val="2"/>
      </dia:attribute>
      <dia:attribute name="elem_height">
        <dia:real val="2"/>
      </dia:attribute>
      <dia:attribute name="draw_border">
        <dia:boolean val="false"/>
      </dia:attribute>
      <dia:attribute name="keep_aspect">
        <dia:boolean val="true"/>
      </dia:attribute>
      <dia:attribute name="file">
        <dia:string>#Загрузки/1-1.png#</dia:string>
      </dia:attribute>
    </dia:object>

I also use yED Graph Editor, but there the pictures are not saved as links, but are copied to the diagram file as resources. yED Graph Editor can automatically arrange the nodes of the diagram, more or less optimally, which Dia cannot.