PDF Textfix and Adobe Acrobat

How do Acrobat and PDF Textfix differ when you change a line of text?

In the font they write with, first of all. Acrobat edits a line in its own font only when that font is installed on your Mac; PDF Textfix writes with the font the document carries, installed or not. The sections below quote Adobe’s rule and show the case on a demo document.

The rest of the difference is scope. Adobe Acrobat is a PDF suite: Adobe’s plans page lists, under each plan, “Create, edit, convert, export, and organize PDFs”, and its help covers recognizing the text of scans, redacting, forms and signatures besides. PDF Textfix does one thing: it changes text that is already on a page of a PDF, a line at a time, and is bought once. Whether it can take over part of your Acrobat work is the subject of leaving Acrobat on a Mac; this page compares the two apps fact by fact.

What does Acrobat do that PDF Textfix does not?

Most of what a PDF suite does. In Adobe’s words, from its help pages:

• New text. “To add new text, click where you want to add text and start typing when a blinking cursor appears.” PDF Textfix adds no text and no text boxes.
• Formatting. “Use the FORMAT TEXT options to adjust font, size, color, alignment, and other text properties.” PDF Textfix keeps each line’s font, size and position.
• Scans. “Acrobat automatically applies OCR to your document and converts it to an editable PDF copy.” PDF Textfix does not edit scanned pages, since the text of a scan is a picture.
• Redaction. Acrobat Pro redacts, and its dialog lets you “choose if you want to sanitize and remove hidden information”. PDF Textfix is not a redaction tool.
• Forms, signatures, conversion, page organizing, and a Windows version: all Acrobat’s, none PDF Textfix’s.

Which plan includes which of these is set out on Adobe’s plans page. Acrobat Reader, Standard or Pro sorts out which plan does what, and can the free Acrobat Reader edit text? answers that question on its own.

How does each one change a line of text?

In Acrobat, you click the text and type: “To replace existing text, click on the text and then type new content.”

PDF Textfix edits less, and checks every edit before applying it. Double-click a line, or select it and press Return, type the correction and press Return again. Before the edit is applied, the app checks that every other character on the page stays where it was and looks as it did. When wider text would run into the words after it on the same line, the app moves those words by the change in width and says so in the bar under the pages; Keep Following Text in Place undoes that. When a check fails, the app refuses the edit, says why in the bar, and leaves the file as it was. Some lines are locked, and the line says why; among the reasons are fonts made of pictures, the hidden text layer of a scan, vertical and right-to-left text, form fields and comments. Encrypted files, and files whose permissions forbid changes, open view only.

Why does Acrobat need the font installed?

This is the main difference in how the two edit. Adobe’s guide is explicit: “To edit text using a specific font, you must have that font installed on your computer. If the font isn’t installed but is embedded in the PDF, you can only change the text’s color or size.”

A PDF often carries its fonts inside the file, as subsets holding only the characters the document uses, and those fonts need not be installed on the Mac that opens it. The demo documents of PDF Textfix are made that way on purpose: on October 13, 2026, pdffonts listed the demo cover letter’s fonts as IBM Plex Serif SemiBold and IBM Plex Serif Regular, both embedded subsets, and IBM Plex is not among the fonts macOS installs. That is the condition Adobe’s rule names: embedded, not installed. Acrobat was not tested on this file. An older Adobe support article, last updated in May 2023 and written for Acrobat 9 and Acrobat X, quotes the message those versions showed: “All or part of the selection has no available system font. You cannot add or delete text using the currently selected font.” What to do about that message has its own page.

PDF Textfix needs no installed copy. It writes the new text with the glyphs the document carries and, for a character the embedded subset lacks, looks in a fixed order: a glyph already in the same font, another copy of the same face in the document, the same font installed on your Mac, then the closest standard font. In the screenshot above, the writer’s name in the heading of the cover letter becomes “Renée Okafor”. The cover letter’s own IBM Plex Serif has every letter of that name except the “é”, so a fallback font draws that one character, and the editor marks it in orange while you type. A character from another copy of the line’s font is underlined, and one no font can draw is red, with the reason.

The font objects already in the file are never modified. Glyphs a fallback adds go into a new font that only the inserted text uses, and a font whose licence limits editing keeps the characters the file already has; the Issues pane names such fonts.

What does each one write when you save?

The Adobe pages read for this comparison do not say how Acrobat writes the bytes of a PDF when it saves an edit, so the table marks that row “not verified”.

PDF Textfix writes the whole file again when you choose Save (⌘S). The lines you replaced are removed from the pages, the saved file keeps no earlier version of them, and everything you did not edit is copied as it was, unless the file was damaged; the app tells you when it repaired one. The rewrite is checked before Save hands the file out, and the status bar says “Saved and verified.” There is no autosave, and Save As leaves the original untouched. A signed document’s signatures no longer verify once an edit is saved, so the app asks before your first edit of a signed or certified file.

Removing words from the page is not removing them from the file: the same words can remain in links and the addresses they open, bookmarks, comments, form fields, a tagged file’s accessibility text and the file’s metadata, and fonts keep the shapes of every character they held. For confidential content, use a redaction tool, such as the one in Acrobat Pro.

Subscription or one-time purchase: what does each cost?

Acrobat is sold by subscription. On October 12, 2026, Adobe’s plans page listed Acrobat Standard for individuals in the United States at US$14.99 a month on an annual plan billed monthly, US$179.88 a year prepaid, or US$24.99 month to month, and Acrobat Pro at US$19.99, US$239.88 and US$29.99 on the same terms. Acrobat Pro has a 7-day free trial, and “After the 7-day free trial ends, your Adobe Acrobat subscription automatically converts to a paid plan at the rate shown at sign up.” The subscription is checked online: “The Internet is required to complete the licensing process on the first launch and every 30 days to validate your subscription.”

PDF Textfix is free to try. Your first 5 line edits save clean. After that, saved files carry a watermark until you buy once. The allowance counts line edits, not days. The purchase is a one-time payment, as an in-app purchase in the Mac App Store or a licence from this website, with no subscription and no account. The version from this website activates its licence online once on each Mac and checks it about once a week when online; after 30 days without a successful check, it asks you to connect once and saves as the free version until a check succeeds. The pricing page lists the price for each region.

Which Macs run each one?

Adobe’s requirements list Windows and macOS; on the Mac, macOS 13, 14, 15 and 26, on an Intel processor or an M1, M2, M3 or M4 chip. PDF Textfix needs macOS 26 or later on Apple silicon and has no Windows version. On an Intel Mac or macOS 13 to 15, Acrobat is the one of the two that runs.

Which one should you use?

Choose Acrobat if PDFs are a daily part of your work: writing and restyling text, editing scans, redacting, running forms, or sharing files with a team that has standardized on it. Check the font question first, since by Adobe’s own note editing a line in its own font needs that font installed.

Choose PDF Textfix when the job is to correct words already on the page and the rest should stay as it was: the date on an invoice, a name in a letter, a figure in a contract, in the fonts the file carries. The two also work side by side, Acrobat for the documents you build and PDF Textfix for the fix in a finished file. To make that fix without Acrobat at all, how to edit a PDF without Acrobat on a Mac walks through it.

Is there a free way to edit text in a PDF on a Mac without Acrobat?

Not completely. Preview, which comes with every Mac at no charge, adds text boxes but does not change the existing text. PDF Textfix changes it, at the cost set out above. Free PDF editors for Mac compares the options that cost nothing.

Can PDF Textfix open PDFs made or edited in Acrobat?

Yes, like any PDF. Whether a line can be edited depends on how the file stores it, and a locked line says why. Encrypted files open view only.

Do I need to uninstall Acrobat to use PDF Textfix?

No. They are separate apps: the Finder’s Open With menu picks one for a file, and how to change the default PDF app on a Mac sets which one opens PDFs on a double-click.