any tool to plot the fragment profile for ctDNA samples?

Question

[J.F.Jiang]

Hi all,

Fragment size of ctDNA offered us another dimension data, since cfDNA from tumors tended to smaller than normal ones.

As displayed in "Genome-wide cell-free DNA fragmentation in patients with cancer", fig.2 offered me a direct information (or comparison) between normal and tumors.

I am wondering is there any tool to generate such a figure from a single bam or batch of bams?

Thanks, Junfeng