I tried to extract images in different formats in a pdf but it extract only 4 images and graph type are not getting extracted

[kumarlova]

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Your configuration (mandatory)

• Operating system, potentially version and bitness
• Python version, bitness
• PyMuPDF version, installation method (wheel or generated from source).

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[kumarlova]

Home Gardens in Nepal.pdf
this my pdf

file = "/content/drive/MyDrive/High voltage data /Home Gardens in Nepal.pdf"

open the file

pdf_file = fitz.open(file)

iterate over pdf pages

for page_index in range(len(pdf_file)):
# get the page itself
page = pdf_file[page_index]
image_list = page.get_images()
# printing number of images found in this page
if image_list:
print(f"[+] Found a total of {len(image_list)} images in page {page_index}")
else:
print("[!] No images found on page", page_index)
for image_index, img in enumerate(page.get_images(), start=1):
# get the XREF of the image
xref = img[0]
# extract the image bytes
base_image = pdf_file.extract_image(xref)
image_bytes = base_image["image"]
# get the image extension
image_ext = base_image["ext"]
# load it to PIL
image = Image.open(io.BytesIO(image_bytes))
# save it to local disk
image.save(open(f"image{page_index+1}_{image_index}.{image_ext}", "wb"))
image

[JorjMcKie]

This is no issue, but a Discussions post ... -> converting.

[JorjMcKie]

The PDF simply contains only 4 images:

for page in doc:
    print(f"{page}")
    pprint(page.get_images())
    print()

    
page 0 of Home.Gardens.in.Nepal.pdf
[(21, 0, 418, 299, 8, 'DeviceGray', '', 'Im0', 'DCTDecode'),
 (22, 0, 404, 301, 8, 'ICCBased', '', 'Im1', 'DCTDecode')]

page 1 of Home.Gardens.in.Nepal.pdf
[]

page 2 of Home.Gardens.in.Nepal.pdf
[]

page 3 of Home.Gardens.in.Nepal.pdf
[]

page 4 of Home.Gardens.in.Nepal.pdf
[]

page 5 of Home.Gardens.in.Nepal.pdf
[]

page 6 of Home.Gardens.in.Nepal.pdf
[]

page 7 of Home.Gardens.in.Nepal.pdf
[]

page 8 of Home.Gardens.in.Nepal.pdf
[(62, 63, 1066, 12, 8, 'Indexed', '', 'Im0', 'FlateDecode'),
 (64, 0, 985, 549, 8, 'Indexed', '', 'Im1', 'FlateDecode')]

page 9 of Home.Gardens.in.Nepal.pdf
[]

page 10 of Home.Gardens.in.Nepal.pdf
[]

page 11 of Home.Gardens.in.Nepal.pdf
[]

page 12 of Home.Gardens.in.Nepal.pdf
[]

Vector graphics cannot be extracted like images, because they are not embedded files or the like. They consist of single draw commands for lines, curves, rectangles, ... with possibly some coloring.
These commands are typically mixed with other display commands of the page to show for example text.
You can try and see if you are able to locate connected clusters of such drawings, join their respective bboxes and then make a picture (Pixmap) of that part of the page - which you then can save as an image file.
There is an example script here that may help you do this.

[JorjMcKie]

As a side note:
This utility cannot know what is contained inside the identified rectangles. So it will also extract tables with grid lines, actual images that have an additional border drawn around them, etc.