Reduce document size when there is an upload limit while keeping the content readable.
When this guide is useful
PDFs containing photos and scanned pages often have more room for size reduction than documents that are already optimized.
Think about where the file will be used. Messaging, social media, websites, presentations and archiving can require different sizes and formats.
How to decide without overcomplicating it
Use moderate compression and open the result to check small text, signatures, charts and photo-heavy pages.
Always start with a copy of the original file. That gives you a reference and lets you try another setting without losing the best-quality source.
How to check whether the result is good
Make a first attempt with moderate settings. Then review the full result, especially areas with small text, faces, music, transitions or fine detail.
Recommended step-by-step
- Always start with a copy of the original file. That gives you a reference and lets you try another setting without losing the best-quality source.
- Use moderate compression and open the result to check small text, signatures, charts and photo-heavy pages.
- Make a first attempt with moderate settings. Then review the full result, especially areas with small text, faces, music, transitions or fine detail.
- Think about where the file will be used. Messaging, social media, websites, presentations and archiving can require different sizes and formats.
Common mistakes to avoid
Avoid replacing an important original with a heavily compressed copy. Keep the original for printing, archiving or another attempt.
Checklist before downloading or sharing
- The final file opens correctly on the device or app where it will be used.
- The important content remains readable, audible or visually natural.
- The size and format fit the goal without unnecessary quality loss.
- You kept the original in case you need to process it again.