How to creat good resolution jpg file in corel draw?

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hey friends i would similar to to know which wht worth should i keep whilst converting CDR to jpg file? means when i emanate jpg record by trade choice in corel pull a ensuing picture shows Dott around content as well as it doesnt demeanour similar to it seems strange in corel.
so wht worth am i suspect to keep in ENCODING process afterwards application balmy pls discuss it me
and additionally discuss it me a significance of this all worth when you change