Module xobject

Expand description

XObject handling

Structs§

ExternalStream
ExternalXObject: External XObject, invoked by /Do graphics operator
FormXObject: THIS IS NOT A PDF FORM! A form XObject can be nearly everything. PDF allows you to reuse content for the graphics stream in a FormXObject. A FormXObject is basically a layer-like content stream and can contain anything as long as it’s a valid strem. A FormXObject is intended to be used for reapeated content on one page.
GroupXObject: `/Type /Group`` (PDF reference section 4.9.2)
PostScriptXObject: TODO, very low priority
ReferenceXObject: PDF 1.4 and higher Contains a PDF file to be embedded in the current PDF
XObjectRotation
XObjectTransform: Transform that is applied immediately before the image gets painted. Does not affect anything other than the image.

DictItem: Simplified dict item for external streams
FormType
GroupXObjectType
ImageFilter: Describes the format the image bytes are compressed with.
XObject: External object that gets reference outside the PDF content stream Gets constructed similar to the ExtGState, then inserted into the /XObject dictionary on the page. You can instantiate XObjects with the /Do operator. The layer.add_xobject() (or better yet, the layer.add_image(), layer.add_form()) methods will do this for you.