1. Cropping canvas: ensure that the canvas size matches the graphics to be exported, and avoid unnecessary blank areas.
2. Crop graphics: Use the "Crop Mask" function to crop graphics and remove unnecessary parts.
3. Check the layer: Make sure there are no hidden elements or unnecessary blank objects in the layer.
4. Find the smallest bounding box: Use the "Expand" option under the "Object" menu or the "Expand" option in the "Appearance" panel to find the smallest bounding box of the graph, and then delete the extra white edges.
5. Export the selected area: If only some drawings need to be exported, you can select the area and export the selection.
If you still encounter problems, you may need to further adjust the export options or check the settings in the AI document. Sometimes, EPS export options may also affect the final output. Make sure that the export settings meet your needs.
If you need more detailed guidance, it is recommended to consult the official documentation of Adobe Illustrator or seek the help of professional designers.