PDF Middle Text Insertion

I have a finished PDF that needs one precise change: I want new text inserted midway through the document while preserving every existing style element—fonts, spacing, headers, footers, page numbers, everything. No other edits (no images or form fields) are required; the job is strictly about adding fresh copy in the middle, not at the beginning or end.

I will provide:
• The original PDF
• The exact wording and approximate page/location for the insertion

You will:
• Seamlessly place the new text at the specified point
• Match the surrounding format so the edit is visually indistinguishable from the original content
• Return both the updated PDF and, if you used one, an editable source file (InDesign, Word, or similar) for future revisions

A quick turnaround is ideal, but accuracy is more important. Let me know what software you plan to use—Adobe Acrobat Pro, InDesign, or another reliable tool—and any questions you have about placement before starting.