Weird characters/symbols when I copy/paste text outside of Acrobat

This is an encoding issue.

You really should be doing your editing in the original application (in this case InDesign) and not use Acrobat. It is not meant to do extensive editing like this.

Anyway, this is what is happening: When fonts are embedded in a PDF, they are often subset and often encoded differently as they are really only meant for printing or display.

When you copy and paste such copy out of the PDF, the encoding no longer matches the font's original encoding, so you get gibberish or empty characters.

The only way around this at this point, as the damage is already done, is to EXPORT your PDF to a Word document, then open that and copy and paste from that. The Export filter will do its best to reorder the characters back into something readable, but it's not a sure thing.

Hi there

Hope you are doing well and sorry to hear that.

As described when you  copy the Spanish text I added and paste it outside of Acrobat, I get weird characters like this:

􀀘􀀎􀀗􀀃􀀉􀀊􀀆􀀉􀀆􀀌􀀍􀀎􀀏

It means that the document is using a font that is not installed on your system. upon further checking the PDF I found that it was created from the Adobe Indesign application. Please try to create the PDF using the Adobe Acrobat DC application and see if that helps.

Regards

Amal