Key takeaway
PDF compression reduces bytes by recompressing embedded images and cleaning bulk — perfect for email caps.
Preview critical pages after compression.
What it means
Scanned PDFs are mostly images — biggest wins.
Text-heavy vector PDFs may shrink less.
Quality settings trade clarity for size.
When you would use it
Email attachments, portal uploads, archiving.
How to use the tool
Use the matching TCB Tools page and work top to bottom:
- Open PDF Compressor.
- Add file.
- Choose strength/target if offered.
- Download and spot-check text and images.
- Re-run gentler if needed.
No account is required. Results update as you type.
How the process works + example
Example: 18 MB scan → ~3 MB after compression still readable on phones.
If OCR text quality matters, verify a search on a keyword.
How to read the result
Illegible receipts are failures even if small.
Local processing has size/page caps.
Planning/practical guidance.
Common mistakes
- Max compression on fine print. Use milder.
- No visual QA. Always check.
- Compressing already tiny files endlessly. Stop.
- Uploading sensitive PDFs needlessly. Prefer local.
Related ideas
Merge/split companions and browser-local.
Know the recipient’s MB cap.
Keep an uncompressed archival copy when legally needed.
If you are new, read once for the story, then again for the clicks you will make.
Write inputs down before changing live budgets or deleting files — calm beats guesswork.
Note the date range, currency or filename so teammates can reproduce the result.
Interactive math and many file jobs run in your browser here; treat outputs as planning aids, not certified professional advice.
When a result looks too good, recheck definitions: units, filters and windows hide surprises.
Practice with example numbers first, then replace them with trusted exports.
Small disagreements between systems are often rounding or filters — investigate before panicking.
Consistent naming, windows and currencies beat clever one-off spreadsheets.
Operators who revisit PDF compression weekly catch drift earlier than teams who only look after emergencies.
Teach one teammate how you measure PDF compression; shared definitions prevent quiet disagreement.
Bookmark the guide and the tool together so beginners always have both the why and the workspace.
When unsure about PDF compression, reduce scope: one campaign, one file, one list — prove the method, then scale.
Screenshots of inputs beside outputs speed audits when someone questions PDF compression.
If leadership wants only a headline, still keep working notes for PDF compression in your own folder.
Seasonality and promotions change PDF compression; annotate the calendar when comparing periods.
Automation helps, but a human still owns success criteria for PDF compression.
Revisit assumptions about PDF compression after tool, tracking or pricing changes.
A short checklist for PDF compression beats relying on memory during busy weeks.
Know the recipient’s MB cap.
Keep an uncompressed archival copy when legally needed.
If you are new, read once for the story, then again for the clicks you will make.
Write inputs down before changing live budgets or deleting files — calm beats guesswork.
Note the date range, currency or filename so teammates can reproduce the result.
Interactive math and many file jobs run in your browser here; treat outputs as planning aids, not certified professional advice.
When a result looks too good, recheck definitions: units, filters and windows hide surprises.
Practice with example numbers first, then replace them with trusted exports.
Small disagreements between systems are often rounding or filters — investigate before panicking.
Consistent naming, windows and currencies beat clever one-off spreadsheets.
Operators who revisit PDF compression weekly catch drift earlier than teams who only look after emergencies.
Teach one teammate how you measure PDF compression; shared definitions prevent quiet disagreement.
Bookmark the guide and the tool together so beginners always have both the why and the workspace.
When unsure about PDF compression, reduce scope: one campaign, one file, one list — prove the method, then scale.
Screenshots of inputs beside outputs speed audits when someone questions PDF compression.
If leadership wants only a headline, still keep working notes for PDF compression in your own folder.
Seasonality and promotions change PDF compression; annotate the calendar when comparing periods.
Automation helps, but a human still owns success criteria for PDF compression.
Revisit assumptions about PDF compression after tool, tracking or pricing changes.
A short checklist for PDF compression beats relying on memory during busy weeks.
Know the recipient’s MB cap.
Keep an uncompressed archival copy when legally needed.
If you are new, read once for the story, then again for the clicks you will make.
Write inputs down before changing live budgets or deleting files — calm beats guesswork.
Note the date range, currency or filename so teammates can reproduce the result.
Interactive math and many file jobs run in your browser here; treat outputs as planning aids, not certified professional advice.
When a result looks too good, recheck definitions: units, filters and windows hide surprises.
Practice with example numbers first, then replace them with trusted exports.
Small disagreements between systems are often rounding or filters — investigate before panicking.
Consistent naming, windows and currencies beat clever one-off spreadsheets.
Operators who revisit PDF compression weekly catch drift earlier than teams who only look after emergencies.
Teach one teammate how you measure PDF compression; shared definitions prevent quiet disagreement.
Bookmark the guide and the tool together so beginners always have both the why and the workspace.
When unsure about PDF compression, reduce scope: one campaign, one file, one list — prove the method, then scale.
Screenshots of inputs beside outputs speed audits when someone questions PDF compression.
If leadership wants only a headline, still keep working notes for PDF compression in your own folder.
Seasonality and promotions change PDF compression; annotate the calendar when comparing periods.
Automation helps, but a human still owns success criteria for PDF compression.
Revisit assumptions about PDF compression after tool, tracking or pricing changes.
A short checklist for PDF compression beats relying on memory during busy weeks.
Know the recipient’s MB cap.
Keep an uncompressed archival copy when legally needed.
If you are new, read once for the story, then again for the clicks you will make.
Write inputs down before changing live budgets or deleting files — calm beats guesswork.
Note the date range, currency or filename so teammates can reproduce the result.
Interactive math and many file jobs run in your browser here; treat outputs as planning aids, not certified professional advice.
Try the tools
Use the PDF Compressor.
