Reduce PDF Size Online, Free — Hit Any Target
Most free reducers shrink just enough not to help — 18 MB becomes 14 MB when email needs 10.
This one hits the target.
Presets for 1 MB, 5 MB, 10 MB, 25 MB — or type your own number.
No signup, no watermark, no "Pro for aggressive compression." Text stays crisp at every level.
The difference between "smaller" and "small enough" is the whole job. Most free reducers don't hit the target sizes people actually need, because target-based compression is usually the Pro upsell.
A genuinely target-based PDF size reducer — specify the size you need (Gmail's 25 MB, an IRS portal's 10 MB, a 5 MB HR upload, a 1 MB web form), and the tool iterates image compression until the output fits. Runs entirely in your browser via pdf-lib with progressive image re-encoding. Related: compress PDF online free, compress PDF to 1MB, compress PDF without upload, compress without losing quality.
✔ Iterative compression until target hit — not a one-shot pass
Any target. Any size. Zero dollars.
The four sizes people actually need
Real-world upload endpoints have hard caps. Here are the sizes you'll need most often — and what tools they apply to.
Why "just smaller" isn't enough — and target presets usually sit behind Pro
Single-pass compression is easy and cheap — target-based compression needs iteration. Here's why that matters.
Typical "free" reducer vs this live race
Same goal: get a 38 MB scanned PDF under Gmail's 10 MB attachment limit. Watch the free tool miss the target.
- Upload 38 MB PDF to server
- Only "Medium" available freeThrottled
- Single pass: 38 MB → 14 MB14 MB
- Still over 10 MB email limitMiss target
- "Target size is Pro only"Paywall
- Download 14 MB — unusableFail
- Drop PDF — pick 10 MB presetTarget set
- Iterate: 38 → 18 → 11 → 9.2 MBHit
- Download 9.2 MB — email readyFree
Three steps — hit the target
Pick a preset or type a custom size. Let the reducer iterate. Done.
Free comparison — reducer edition
The reducer-specific details that determine whether "free" actually solves your problem.
Related free tools
Frequently asked questions
Does it actually hit the size target I need?
Is it really free for any target size?
Why do I need specific sizes — won't "smaller" do?
How much can it reduce a PDF?
Is there a watermark?
Do I need an account?
Will the text stay readable at small sizes?
Can I reduce PDFs larger than 25 MB?
Is the reduced PDF still openable in Acrobat / Preview?
Does the file get uploaded to your servers?
Can I reduce password-protected PDFs?
How fast is it for large files?
Does it work on mobile?
Can I use this for commercial work?
What's the catch with other "free" PDF size reducers?
Hit your target. Keep the quality. Zero dollars.
Email caps, form limits, archive sizes — pick the number you need, and the reducer iterates until it fits. No Pro tier, no fixed-level one-shot that misses the mark.
download_doneReduce PDF — Free