I want to delete image by reading its base64 value. I cannot find any suitable sample code. Do you have? [email protected]

[nissansz]

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Potentially add an issue reference.
I want to delete image by reading its base64 value. I cannot find any suitable sample code. Do you have? [email protected]

Describe the solution you'd like
A clear and concise description of what you want to happen.

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Are there several options for how your request could be met?

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Add any other context or screenshots about the feature request here.

[JorjMcKie]

This is a typical "Discussions" item and does not qualify as an issue.
So I will transfer it and answer from there.

[nissansz]

Ok. Will wait for answer.

[nissansz]

When I try to use remover.py, below errors occurred. Sometimes the code works.
I want to remove the small image under the large image by judging base64 value of the image.
Process finished with exit code -1073741819 (0xC0000005)
59-60.pdf

[nissansz]

After disable this line # page.clean_contents() # unify page's /Contents into one
The code can run, but it removed other images too, below is result, don't know how to solve.

[nissansz]

I tried image-maintenance.py below is error.

Python: 3.8.6 (tags/v3.8.6:db45529, Sep 23 2020, 15:52:53) [MSC v.1927 64 bit (AMD64)]
wxPython: 4.1.1 msw (phoenix) wxWidgets 3.1.5

PyMuPDF 1.20.2: Python bindings for the MuPDF 1.20.3 library.
Version date: 2022-08-13 00:00:01.
Built for Python 3.8 on win32 (64-bit).

Process finished with exit code -1073741819 (0xC0000005)

[JorjMcKie]

Please update your PyMuPDF to the latest v1.21.0.
It fixes a problem which sometimes cause segmentation faults when executing page.clean_contents().
I tried your PDF with the GUI script and it did work.

[nissansz]

I cannot access the new package.
Any place to download for offline install?

[JorjMcKie]

Sorry, it is still a release candidate, so please download like here

[nissansz]

python -m pip install pymupdf==1.21.0rc1 --trusted-host pypi.org pytest-html
This command works. I installed it.

There is a leftover transparent rect in the pdf, cannot remove too?

[JorjMcKie]

which rect do you mean?

[nissansz]

The original image. Which seems removed, but there is a hidden rectangular, as you can see in above image.

[JorjMcKie]

If that is no image and no text, it cannot be removed.

[nissansz]

Also, I want to replace some hidden white text with space, or just remove those white text. Any method or code?

[JorjMcKie]

Use redaction annotations. You need the boundary box of the unwanted text.
Then do:

page.add_redact_annot(bbox)
# maybe add more redact annots
# finally:
page.apply_redactions()

[nissansz]

Is it possible to get html for redact instead of get_text?

for block in page.get_text("dict", flags=fitz.TEXTFLAGS_TEXT)["blocks"]:

[JorjMcKie]

Any method by which you can determine the rectangle of unwanted text is okay.

[JorjMcKie]

(Redaction) annotations as such have no relation to text or other page content.
Annotations are not a part of the page content - compare them like dust on the glass cover of a picture: can be wiped away without changing the picture itself.

[nissansz]

Thank you. I will hold the attempt to redact text.
If there is such demand in future, will try again.