I recently bought a Surface 3 pro tablet, and really love the ability to annotate pdf documents using the stylus.

Still, for scribbling along my thoughts while reading a document, I would need more space beside the document content.

Is there some tool that I can use to increase the width of the pages within a document (so I would have a sidebar for annotations)?

1 Answer 1


You can use this online tool: https://pdfresizer.com/crop

It's very simple, but does the job. Upload your PDF file and select "Extend margins" option, it will let you enter arbitrary size for each margin.

Extend margins tool in action

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