Use Edit PDF with clear expectations.

Edit PDF is AJN PDF’s full browser editing workspace for practical document corrections. Use it to change dates, names, numbers and amounts, replace visible text, add new text, insert images or signatures, highlight content, and manage pages without sending the PDF to a file-processing server.

Smart Replace reads the PDF text layer with PDF.js, captures the selected text position, size, baseline, width and available font information, then creates a replacement at the same location. When a PDF uses scanned content, unusual glyphs or a font that cannot be reproduced cleanly, Manual Edit provides Whiteout plus Add Text so the visible document can still be corrected. AJN PDF keeps edit operations in the browser and creates a new downloadable PDF with pdf-lib; the source file is not overwritten.