Best Settings for Merge PDF: Quality vs File Size

Combine multiple PDF files into one clean downloadable document. This post explains practical ways to merge PDF files online with predictable quality and reliable output.

What this tool is best for

• Monthly report packs
• Supplier quote bundles
• Training packs and policy handbooks

Best settings by goal

Fastest turnaround

• Use settings optimized for speed and quick sharing.
• Reduce unnecessary pages or oversized source assets first.

Balanced quality and size

• Merge related documents in smaller batches if source files are very large.
• Validate output once before publishing or sending.

Smallest possible output

• Check the final output in your preferred PDF viewer before distribution.
• Expect some quality trade-offs when maximum reduction is required.

Pro tip

Test one sample file first, then standardize the same settings across your full batch.

Related tools

• Compress PDF
• JPG to PDF

Use this tool

• Merge PDF
• All tools