How to Fix PDF Text Formatting Changes in Apple Preview
Question details
Users experience loss or alteration of text properties, form data, and document formatting when opening PDF files using Apple Preview.
- Product
- Apple Preview
- Device & OS
- macOS
- Scenario
- Viewing, filling forms, or modifying a PDF document on a Mac device.
- Observed behavior
- Text properties, embedded fonts, and formatting are lost, modified, or displayed incorrectly compared to the original document.
Verify that you have an unmodified original copy of the PDF file before proceeding, as saving the altered document in Apple Preview can permanently overwrite its original text properties and form data.
Open the PDF with a Dedicated PDF Reader
Switching from Apple Preview to a professional PDF reader ensures that complex text properties and formatting are rendered exactly as intended.
Apple Preview uses macOS's built-in rendering engine, which is notorious for mishandling complex PDF formatting, interactive form fields, and specific font embeddings created by standardized PDF software. To resolve this, you must open the document in an application specifically designed for standard PDF processing, such as WPS Office or Adobe Acrobat.
Find the affected PDF file in your Mac's Finder.
Right-click (or Control-click) on the PDF file.
Hover over 'Open With' in the drop-down menu and choose 'WPS Office', 'Adobe Acrobat Reader', or another dedicated PDF application instead of 'Preview'.
View and Edit PDFs Flawlessly with WPS Office
WPS Office for Mac includes a powerful, built-in PDF reader and editor that perfectly preserves your document's original formatting, text properties, and interactive form data. By setting it as your default PDF handler, you can bypass Apple Preview's limitations entirely.
- 1. Install the software: Download and install the WPS Office application for Mac.
- 2. Open file properties: Right-click any PDF file on your Mac and select 'Get Info'.
- 3. Change the default application: Locate the 'Open with' section in the info panel and select 'WPS Office' from the dropdown menu.
- 4. Apply to all PDFs: Click the 'Change All' button to ensure all future PDF documents automatically open securely in WPS Office, preventing further formatting loss.
Frequently Asked Questions
Why does Apple Preview alter the formatting of my PDF?
Apple Preview relies on Apple's proprietary PDFKit framework. While suitable for simple viewing, it often struggles to correctly interpret complex text metadata, non-standard font embeddings, and interactive form fields created by industry-standard tools like Adobe Acrobat, resulting in formatting changes.
Can I recover my PDF's original text formatting if I already saved it in Preview?
If you manually saved the file while in Apple Preview, the underlying document properties may have been permanently rewritten. You will need to restore a previous version using macOS Time Machine or re-download the original file from its source.
How do I stop Apple Preview from opening my PDF files by default?
To change your default PDF viewer on Mac, right-click any PDF file and select 'Get Info'. Expand the 'Open with' section, choose your preferred PDF software (like WPS Office) from the dropdown list, and click the 'Change All' button to apply this setting system-wide.
