[OS X TeX] Assigning Skim or TeXShop to open a PDF file

[Richard Seguin]

> On Feb 5, 2021, at 5:45 PM, Herbert Schulz <herbs at wideopenwest.com> wrote:
> 
> 
> 
>> On Feb 5, 2021, at 3:34 PM, Richard Seguin <riseguin at earthlink.net> wrote:
>> 
>> I just tried to use the “Get Info” panel to change the app that opens a particular PDF file from the default Preview to either TeXShop or Skim. When I do this, and double click on the PDF file, I get the error message:
>> 
>>> “BetaT2.pdf” cannot be opened because it is from an unidentified developer.
>>> 
>>> macOS cannot verify that this app is free from malware.
>> 
>> When the default app for the file is set to Preview, it opens in Preview as expected. But when it’s another app, it appears that the system assumes the PDF file is an app. Does anyone have an idea how to fix this? I’m on macOS 10.15.7.
>> 
>> I should mention that if I have the corresponding BetaT2.tex file open in BBEdit, and run a script from BBEdit to open BetaT2.pdf in Skim, it opens properly in Skim with no error messages.
>> 
>> Richard Séguin
> 
> Howdy,
> 
> As a side note: could you check to see if the execute bit is set on that .pdf file? Did you set ALL .pdf to open with Skim/TeXShop or only that file? If I change it for a single .pdf file to open with TeXShop when double-clicked it works fine.
> 
> Good Luck,
> 
> Herb Schulz
> herbs at wideopenwest.com

How do you check if the execute bit is set on the file"

It seems to misbehave only if I specify Skim (for example) in the Get Info panel for that specific file. If I additionally do the “Change All …” then the document will open in Skim when double clicked. Hmmm. The problem is that I don’t necessarily want all PDF files to open in the same application.

This is an observation that I sent a little earlier that for some reason has not come back to me yet:

If the default is set to Preview in the Get Info panel, and I do the right click and select open with Skim, it does in fact open in Skim. Then when I change the default to Skim on the Get Info Panel (without doing a Change All), right click on the PDF file icon and select open with Skim, I get the slightly different error message:

> macOS cannot verify the developer of “BetaT2.pdf”. Are you sure you want to open it?
> 
> By opening this app, you will be overriding system security which can expose your computer and personal information to malware that may harm your Mac or compromise your privacy.

Richard
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