แก้ไข PDF ใน Python

import aspose.slides as slides

with slides.Presentation() as pres:
    pres.slides.remove_at(0)
    pres.slides.add_from_pdf("document.pdf")

    shape = pres.slides[0].shapes.add_auto_shape(slides.ShapeType.RECTANGLE, 10, 10, 100, 50)
    shape.text_frame.text = "New text"

    pres.save("document.pdf", slides.export.SaveFormat.PDF)