Photoshop Letter Text Update

I need my existing letter opened in Adobe Photoshop and the supplied lines of copy inserted throughout the document— not just in one spot, but wherever I indicate in the marked-up file (5 small spots- dates, and one sentence edited. What I’m looking for is clean, seamless integration so the new wording matches the current font, size, kerning, and overall layout perfectly. Easy job.

You’ll receive:
• PDF of the original letter
• a simple list showing the exact sentences and their positions

I’ll want back a print-ready PDF