If a graphics file cannot be opened in an image viewer, what should the next step be?

I dig this issue because I had similar problem with photos exported from Android Send Reduced Free application.

This issue in my case is related to included Profile-icc in that JPG file.

  Profiles:
  Profile-icc: 536 bytes

It can be verified with ImageMagick identify -verbose command.

This is maybe not solution for Opening it right from Outlook but You can fix that files in source.

I've discovered that when I run convert BADFILE.jpg -strip GOODFILE.jpg command on that file it opens on Windows 7 Photo Viewer without any problem.

-strip  - strip image of all profiles and comments

You can get this whole tool here: https://imagemagick.org/script/download.php

So if You want make that all images again accessible just run batch on them:

mogrify.exe -format jpg -verbose -path C:\OUTPUT_DIR -strip *.jpg

Might be also used relative path like -path OUTPUT_DIR if You want them in subfolder.

If You have to open that files directly from Outlook I'd recommend for example IrfanView which does not have problem with opening that files. Just set it as default graphics files program.

Some people adviced something related to changeing default profiles in Your screen configuration, but I have it set to my Monitor type so I don't want to mess with that settings.

If You want this fully automatic You need 3 things:

1. DefaultProgramsEditor ( https://defaultprogramseditor.com/ )
2. ImageMagick ( https://imagemagick.org/download/binaries/ImageMagick-7.0.10-1-portable-Q16-x64.zip )
3. Batch script which will process opened file.

1) First decompress ImageMagick to c:\apps\ImageMagick-7.0.10-1-portable-Q16-x64

2) Create batch script c:\apps\gfxopen.bat:

@echo off
C:\Apps\ImageMagick-7.0.10-1-portable-Q16-x64\convert.exe %1 -strip c:\temp\temp12345file.jpg

rundll32 "C:\Program Files\Windows Photo Viewer\PhotoViewer.dll", ImageView_Fullscreen c:\temp\temp12345file.jpg

del c:\temp\temp12345file.jpg

3) Decompress DefaultProgramsEditor and run it, then choose File Type Settings > Context Menu > find jpg extension, then > Add...

Command name: Open Fixed Image

Program path: "C:\apps\gfxopen.bat" "%1"

Then choose "Open Fixed Image" and press "Set selected command as default"

Then Save context menu

That's all :)

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Issue

When you open an image in Photoshop, one of the following errors occurs:

• Could not complete your request because it is not a valid Photoshop document.
• Could not complete your request because an unknown or invalid JPEG marker type is found.
• Could not complete your request because the file-format module cannot parse the file.
• This is not a valid Portable Document File (PDF) document. It cannot be opened. 

Solutions

Solution 1: Make sure that the filename extension matches the actual file type

It's important that the extension you add to the filename is the appropriate one for the actual file type of the image. When you choose a format from the Format pop-up menu in the Save As dialog box, the appropriate extension is added automatically. If you entered the extension manually, you could have typed in an extension that doesn't match the file format of your file.

Filename extensions are hidden by default. To make file extensions visible:

macOS

• Show or hide filename extensions on Mac

Windows

• File Extensions in Windows

Solution 2: Make sure that the file has only one filename extension

View your images in Finder or Windows Explorer. Check to see of there are two extensions on your files. If your images have two extensions, such as:

• filename.pdf.jpg

Remove the last extension so the file is named:

• filename.pdf

Solution 3: Open the file in another photo app and save as JPEG

Open the problematic image in a photo app such as Preview (on macOS) or Photos (on Windows). Now save the file again as a JPEG image from within such an app. Try opening the file again in Photoshop.

Solution 4: Make sure that your hardware isn't damaged

Which term refers to a data hiding technique that uses host files to cover the contents of a secret message?

Which of the following is not a common graphic file format?

Which of the following techniques has been used to protect copyrighted material by inserting digital watermarks into a file?

What tools are used to create modify and save bitmap vector and metafile graphics?