Font with the same name being embedded multiple times after combined in Acrobat Pro

Hi 

Sorry for the delayed response, and thanks for reaching out with this question.

When combining multiple PDFs in Adobe Acrobat Pro, you might notice that the same font appears multiple times in the document properties. This occurs because each original PDF may have its own subset of the font embedded, tailored specifically to the characters used in that document. When these PDFs are merged, Acrobat retains each subset to ensure accurate rendering, leading to multiple instances of the same font being listed.

Why Does This Happen?

• Font Subsetting: To reduce file size, PDFs often embed only the specific characters of a font that are used in the document, creating a subset. Different PDFs might have different subsets of the same font.

• Merging PDFs: When combining PDFs, Acrobat includes all font subsets from the original documents to maintain the correct appearance of text. This results in multiple embedded subsets of the same font in the combined PDF.

How to Address This Issue:

To consolidate these font subsets and reduce redundancy, you can use Acrobat's optimization tools:

PDF Optimization:

• Open the combined PDF in Acrobat Pro.
• Navigate to File > Save As Other > Optimized PDF.
• In the PDF Optimizer dialog, select the Fonts category.
• Ensure that "Subset all embedded fonts" is unchecked to embed entire fonts rather than subsets.
• Click OK to save the optimized PDF.

Preflight Tool:

• Go to Tools > Print Production > Preflight.
• In the Preflight dialog, select a profile that consolidates fonts or create a custom fixup to merge font subsets.
• Run the preflight profile to process the PDF.

By performing these steps, Acrobat will attempt to merge identical font subsets, resulting in a single embedded font and potentially reducing the file size.