How It Works — 3 Simple Steps
Select Your File
Click to browse or drag and drop. No account or signup needed to get started.
Adjust Settings
Choose compression level or quality. Preview settings before processing.
Download Instantly
Processing happens in your browser. Download immediately — no waiting.
Why Use Nanivolt?
100% Private
All processing happens in your browser. Files never leave your device or touch our servers.
Lightning Fast
No upload time means instant processing. Results in seconds, even for large files.
No File Size Limits
Client-side processing means Pro users can compress files of any size with no restrictions.
Works Everywhere
Desktop, mobile, or tablet. Chrome, Safari, Firefox, or Edge. No app download needed.
Genuinely Free
5 files/day free, no credit card. Optional Pro for $8/month — unlimited everything.
Quality Control
Adjustable quality settings let you balance file size vs output quality for every use case.
Simple, Transparent Pricing
Free Account
- 10 files per day
- 25MB max file size
- All 4 tools
- 7-day file history
More Free Tools
Frequently Asked Questions
Is the PDF merger free?
Yes — completely free for up to 5 merges per day with no signup. Create a free account for 10 merges/day, or upgrade to Pro for unlimited merging.
Can I reorder pages before merging?
Yes. Drag and drop the uploaded PDFs to arrange them in any order before merging.
Do my PDFs get uploaded to a server?
No. All merging happens in your browser using pdf-lib.js. Your documents never leave your device.
Is there a limit on how many PDFs I can merge?
Free users can merge up to 5 PDFs at once. Pro users can merge unlimited files.
Will merging reduce PDF quality?
No. Pages are copied directly — there is no re-encoding or quality loss.