Review and edit
How to review, edit, annotate, watermark, and compare a PDF
Begin by identifying whether the task changes the document, adds visible material, or only reviews differences.
Reviewed by PDFKaka ·
Review the source before changing it
Use PDF Reader to navigate thumbnails, zoom into details, and check page orientation. Keep the original open for comparison when making important changes.
- Open the PDF in PDF Reader.
- Review every relevant page.
- Decide which focused editing task is actually required.
Add visible text, highlights, or a watermark
Edit PDF adds new positioned text. Annotate PDF adds a focused highlight and optional note. Watermark PDF applies repeated visible text with appearance controls.
- Choose the narrowest tool for the task.
- Preview the placement and appearance.
- Create and review the changed copy.
Compare document versions
Compare PDF renders both documents and reports visual page differences. It can reveal changed appearance but cannot decide whether two documents have the same legal meaning.
- Choose the earlier and later PDFs.
- Run the visual comparison.
- Inspect every reported difference in context.
Tools used in this workflow
Frequently asked questions
Can Edit PDF replace existing words?
No. The current focused editor adds new text without rewriting existing document text.
Can Compare PDF prove that documents are legally identical?
No. It is a visual comparison tool, not a semantic, cryptographic, or legal verification service.