Technical Support:
We continuously improve the app’s features and performance. If you have purchased the app, you can upgrade for free.
Purchase
Click the Purchase button 
to purchase DWG to PDF Converter Pro. The free version adds a "Trail Version" watermark when exporting PDF, limits export to 50 drawings, and cannot open files larger than 500 KB. After purchase, these limits are removed.
Restore Purchases
If you reinstalled the app or switched to another Mac, you need to restore your purchase.
Click the Restore Purchases button on the toolbar to restore your purchase.
If restore does not work
Make sure you are signed in with the same Apple ID used for the original purchase, then restart your device and try again. If it still fails, contact Apple Support or report a problem to Apple.
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