I have tried everything I can found, at first, selecting "general" instead of "minimum" when exporting will damage image quality. Secondly, I have tried "microsoft print to pdf", but it is in A4 and my size is 5.25'' x 8". I tried to add customized size and edit the documents and still not wording. I have even downloaded some PDF converters, but they still compromise quality.
更新1:
I have tried everything basic. Save as and export
更新2:
For reference, "microsoft print to pdf" does have much better quality, but the size is not right and I try to adjust it but there is only conventional size to switch or even add. I can't even add 5.25'' x 8" size even when I try to type in the code in the size document thing