Hello,
Photoshop is not the best application for creating a layout for a resume, but as you have your layout in Photoshop now, I believe you can proceed to create an editable PDF file. The important thing is to keep your text layers as text and not rasterize them. If you do the text will no longer be editable as it will be a graphic. You would assume that the correct approach would be to save your document to PDF. In Photoshop that is designed to create a graphic for proofing purposes or to be imported into another program. Instead use Print and select as your printer Adobe PDF. Now if you don't have Acrobat that won't be there and you'll need an alternative. There's nothing wrong with Acrobat it's just expensive if only used occasionally. An alternative is Foxit Reader which is just as good but far more sparse in features, but it is free and allows PDF files to be created.
https://www.foxitsoftware.com/products/pdf-reader/
Whether you print to Acrobat or Foxit is entirely up to you, but either way you will get a PDF file with editable text, you can change fonts, point sizes and alignments, but editing PDF files is cranky as the format was never created by Adobe for editing it was supposed to be the end of workflow document. None the less edits can be made, but it can be a pain doing it. Hope that gives you a lead on how to proceed.
Terri