Objects Render Outside Bounding Box, Thin Lines

let tempDir = NSTemporaryDirectory()
let sourcePath = NSBundle.mainBundle().pathForResource("example_Geo_PDF", ofType: "pdf")
let loadResult = debenu.LoadFromFile(sourcePath, "")
let renderResult = debenu.RenderDocumentToFile(72, 1, debenu.PageCount(), 1, tempDir + "example_Geo_PDF.png")

The render has a couple of problems that I'm not yet sure how to fix. 

Many shapes are drawn outside what should be their bounding box. Example: 

Original 
Render

I also have two maps that use thin lines for contours and outlines, but when rendered at higher DPI the lines are so fine they can barely be seen. I cannot provide the PDF documents for them :(

Original
Render (600DPI)

I saw a line thickness option under SetGDIPlusOptions, is there something like that for iOS?