Practical Conversion Guides

Use these guides to choose the right format, quality setting, and output workflow before you convert. The goal is to help you avoid trial-and-error, reduce failed exports, and get predictable results on the first pass.

1) Quick Format Decision Matrix

Pick based on your end goal first, then adjust quality. This avoids over-compressing important files or exporting to a format that is hard for recipients to open.

Goal Common Output Why It Helps Main Tradeoff
Share photo fast JPG Small size and broad support Lossy compression can soften details
Keep transparency PNG or WEBP Supports alpha channel Files may be larger than JPG
Share fixed pages PDF Consistent layout across devices Not ideal for detailed editing
Audio sharing MP3 or AAC Good compression and compatibility Some quality loss at lower bitrates
Archive audio master FLAC or WAV High fidelity for editing/backup Larger file size
Cross-device video MP4 Broad browser and device support Re-encoding can change quality

2) Quality Slider Starting Points

These are safe starting ranges. Test one representative file before running a full batch.

  • Document to image: Start around 80% to 90% for text-heavy pages that will be zoomed or printed.
  • Image to image: Start around 75% to 90% depending on whether sharpness or file size matters more.
  • Image to PDF: Start around 80% to 90% for scans, receipts, and screenshots with small text.
  • Audio to lossy: Start in the upper range for music; use midrange for voice notes and quick sharing.
  • Video re-encode: Start around 75% to 90% for motion-heavy clips, then step down only if uploads are too large.

3) Why Output Size Sometimes Gets Bigger

A larger file after conversion is normal in many workflows. It usually means the new format stores data differently, not that conversion failed.

  • You converted from a strongly compressed format to a less compressed or lossless format.
  • You increased quality to preserve fine details.
  • You exported to PDF with embedded images, fonts, or larger page dimensions.
  • You converted media with long duration or high motion content where compression is less efficient.

4) Conversion Troubleshooting Checklist

Run this checklist before changing tools:

  • Confirm source and target format match your real use case.
  • Test one file first, then verify readability/playback in the destination app.
  • If quality looks soft, increase slider gradually and compare side-by-side.
  • If file is too large, lower quality in small steps and re-check acceptable detail.
  • For PDF outputs, inspect page order, orientation, and small text before sharing externally.