#32084: Can't upload PNG to ImageField
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Reporter: terminator14 | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version: 2.2
Severity: Normal | Resolution:
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Description changed by terminator14:
Old description:
> I have an image field like this:
>
> {{{
> logo_help_text = "Company Logo"
> logo = models.ImageField(upload_to='logos/', blank=True, null=True,
> help_text=logo_help_text)
> }}}
>
> I can upload lots of different images, in Django Admin to this field
> without issue. The particular image I was trying to upload had no
> problems being uploaded, but the image contained a logo with dark
> letters, and my website background color was dark, so it looked bad. All
> I did was use Gimp 2.10.4 (MacOS) to change the color of the company name
> text in the logo to a lighter color, and export the PNG.
>
> According to linux's 'file' tool, both the source logo, and the resulting
> logo are identified exactly the same:
>
> {{{
> test.png: PNG image data, 1280 x 403, 8-bit/color RGBA, non-interlaced
> }}}
>
> For some reason, when I try to upload the resulting PNG, Django admin
> tells me "Upload a valid image. The file you uploaded was either not an
> image or a corrupted image.".
>
> Image file that can't be uploaded attached.
New description:
I have an image field like this:
{{{
logo_help_text = "Company Logo"
logo = models.ImageField(upload_to='logos/', blank=True, null=True,
help_text=logo_help_text)
}}}
I can upload lots of different images, in Django Admin to this field
without issue. The particular image I was trying to upload had no problems
being uploaded, but the image contained a logo with dark letters, and my
website background color was dark, so it looked bad. All I did was use
Gimp 2.10.4 (MacOS) to change the color of the company name text in the
logo to a lighter color, and export the PNG.
According to MacOS' 'file' tool, both the source logo, and the resulting
logo are identified exactly the same:
{{{
test.png: PNG image data, 1280 x 403, 8-bit/color RGBA, non-interlaced
}}}
For some reason, when I try to upload the resulting PNG, Django admin
tells me "Upload a valid image. The file you uploaded was either not an
image or a corrupted image.".
Image file that can't be uploaded attached.
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Ticket URL: <https://code.djangoproject.com/ticket/32084#comment:1>
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