Use the
Open 
tool to open an existing file in the SolidWorks eDrawings Viewer.
If you open either a read-only file or a file that is already open in your CAD application or another eDrawings Viewer, a message box advises you of this. You can open the file as read-only, but if you try to save changes to it, a message box appears. Click OK to close the message box, and a Save As dialog box appears. You can then save the file with another name.
eDrawings detects when the graphics data for a component may not be in sync with a later version that was modified and saved in a SolidWorks assembly. When you open a potentially outdated component, a watermark displays a warning and suggests that you rebuild the part in the SolidWorks software. To control the display of the watermark, click .
The eDrawings Viewer does not display all information in detached drawing documents. To display all information in a detached drawing, publish an eDrawings drawing document from SolidWorks, or re-save the drawing document as a regular (undetached) drawing.
When you open a SolidWorks document in eDrawings, eDrawings checks the document's file references to see if the references have been updated. This helps you determine if the document is out of date. If eDrawings cannot determine whether file references are up to date,
or if it confirms that the file references are not up to date, a watermark is displayed. You can click the warning icon

in the bottom of the eDrawings window and click any of the following:
- Check if File is Out of Date
- Always Show Warning Watermark
- Show Warning Watermark for this document only
To use the file reference checking for standalone eDrawings installations, you must download and install the SolidWorks Document Manager when prompted. The Mac OS
® version of eDrawings cannot check file references.