How to get all elements of a page and delete some elemets by rectanular coordinates?

[nissansz]

How to get all elements of a page and delete some elemets by rectanular coordinates?

[JorjMcKie]

Use redaction annotations, page.add_redact_annot().

[nissansz]

1-2Sample.pdf
Check attachment for sample.
What I want to do is to

1. Replace background image of page 1
2. Remove center circled element on page 1
3. Remove center circled element on page 2

Can you help show a sample code about how to realize the functions?

[JorjMcKie]

Not supported for this document:
This is no text, but vector graphics, which cannot be modified.

[nissansz]

Is there any way to detect vector elements? And then delete by elements?

Also, if I create pdf from exported image, how to specify page size?

p1 = fitz.open(p1)
pdfbytes = p1.convert_to_pdf()
p1pdf = fitz.open("pdf", pdfbytes)

[nissansz]

How about redact by rect?

[JorjMcKie]

Also, if I create pdf from exported image, how to specify page size?

Take the image width / height, then do page = doc.new_page(width=width, height=height).
Then insert image page.insert_image(page.rect, ...).

[nissansz]

If I want to export one page as image to stream, and then edit stream as cv2 to replace image and then send back to replace original page, any sample code?

[JorjMcKie]

No I don't have any.

[nissansz]

How to specify exported image size for each page? The size become 5950*8410 pixels when I used a code online

[nissansz]

How to print original page size?