While merging two pdf, if two pdf are of different width, In the combined pdf we can easily notice the difference. The content of the smaller pdf has a background black color in the combined PDF. This seems odd.
Is there any way we can resize the pdfs to the desired size before merging?
Thanks for sharing your feedback. Though we do not have this functionality as of today in our SDKs but we will surely forward this request to Engineering team. And we might consider offering this solution in future. In the meantime, please explore Acrobat wherein we have the desired functionality. Refer https://helpx.adobe.com/acrobat/kb/Change-PDF-page-size-in-MAC.html for more details