pypdf

I was wondering if anyone had any experience in working programmatically with .pdf files. I have a .pdf file and I need to crop every page down to a certain size. After a quick Google search I found the pyPdf library for python but my experiments with it failed. When I changed the cropBox and trimBox attributes on a page object the results were not what I had expected and appeared to be quite random. Has anyone had any experience with this? Code examples would be well appreciated, preferably in python. danio pypdf does what I expect in this area. Using the following script: #!/usr/bin/python #

I would like to know a way to remove white margins from a PDF file. Just like Adobe Acrobat X Pro does. I understand it will not work with every PDF file. I would guess that the way to do it, is by getting the text margins, then cropping out of that margins. PyPdf is preferred. iText finds text margins based on this code: public void addMarginRectangle(String src, String dest) throws IOException, DocumentException { PdfReader reader = new PdfReader(src); PdfReaderContentParser parser = new PdfReaderContentParser(reader); PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(RESULT))

How might one extract all images from a pdf document, at native resolution and format? (Meaning extract tiff as tiff, jpeg as jpeg, etc. and without resampling). Layout is unimportant, I don't care were the source image is located on the page. I'm using python 2.7 but can use 3.x if required. Often in a PDF, the image is simply stored as-is. For example, a PDF with a jpg inserted will have a range of bytes somewhere in the middle that when extracted is a valid jpg file. You can use this to very simply extract byte ranges from the PDF. I wrote about this some time ago, with sample code: