xDiagram application could help you make nice diagram graphic documents quickly by keeping lines connected to shapes even when they're moved.
The application provides powerful graphic tools for designers, developers to draw UML activity diagram.

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Functions of the application:

✔ SMART LINE / CONNECTOR:
Smart Line if attached to a shape will automatically change position every time when the main shape is moved, resized.


✔ BASIC SHAPE (new):
There are 92 shapes to add to your diagram. You could add/change text to display inside the shape.
Drawing UML activity diagram will be easier using these shapes.


✔ PRE-DEFINED IMAGES (new):
There are 1056 predefined nice images shapes for you to add to your diagram.
Shape types are as following:
- Computer
- Network
- Office
- Life
- Traffic
- Meme
- Flag


✔ OVER 2000 BEAUTIFUL SYMBOLS:
More than that, there are over 2000 beautiful symbols for you to add to the diagram.
Please press the "☺" button on the left to add and select any symbol to the diagram.


✔ ADD IMAGE:
You could add any image file (support file type: gif, jpeg, png, bmp, pict, tiff) to display as an item inside the application.
Image file could be shown in following modes: Stretch / Fit inside bound / Fit outside bound.

The application also allows to DRAG/DROP many image files directly from Finder to current editing window to add them to the diagram.


✔ GROUP / UNGROUP ITEMS (new):
Group items for easy control of multi objects.


✔ COPY / PASTE:
The application supports copy/paste function for shapes.
You could copy shapes/lines from current diagram window then paste them to another diagram window.


✔ CUSTOMIZABLE COLOR / FONT / SIZE / LINE TYPE / TRANSPARENT-ALPHA:
Font color, font type, text size, line width, line color, line dash type, arrow type, background color, transparent (alpha) level of shapes could be changed easily by using toolbar controls.


✔ CUSTOMIZABLE BACKGROUND:
Background color, total size of the diagram could be changed during editing.
Background color also can be set to transparent.


✔ UNDO/REDO:
You can perform unlimited undo and redo of your actions when edit a diagram.


✔ SHADOW:
All items could be set to have shadow. Shadow setting includes: blur level, alpha level, color.


✔ LOCK ITEM POSITION:
Press "⌘L" to lock position of items that you want to fix position, size.


✔ SNAP TO GRID
Allow to snap item to grid for easy positioning. Plus you could also change grid size.


✔ ALIGN MULTIPLE ITEMS:
Select many items then do right-click mouse to select alignment options as following:
★also allow to auto-align with another objects★
- Left
- Right
- Top
- Bottom
- Center (Horizontal or Vertical)
- Horizontal center in View
- Vertical center in View


✔ CHANGE DISPLAY ORDER:
Select items then do right-click mouse to select change order settings:
- Send to back
- Bring to Front
- Bring forward 1 level
- Send backward 1 level


✔ OPEN/SAVE to "*.UMD" file:
UMD (*.umd) is the new file type created only for this application.
Press "⌘S" to save current diagram to an UMD file so that you could load it later for editing.


✔ EXPORT TO IMAGE FILE:
Press "⌘E" to export current diagram to an image file with format of PDF, TIFF or PNG or JPEG.


✔ SUPPORT PRINT:
Press "⌘P" to print current document.


✔ CAPTURE TO CLIPBOARD:
Press "⌘4" or click on Capture button to export current diagram image to clipboard, then you could paste that image to another application.

Example: Open [Preview] application, press "⌘N" to paste above captured image to view or to save to an image file.
Of course, you could paste that image to Excel, Word application too.


★ There is a new xDiagram Pro version, please also consider it before downloading the app