Compress PDF & photos
WhatsApp, Email or Max profiles. Before / after sizes visible.
100% on-device · PDF & photos
Your PDFs.
Your PDFs.
Lighter.
On your phone.
Compress PDF and photos for WhatsApp or email, convert, merge and split, even offline.
No mandatory cloud. No account. Your files stay on your device.
On-device
No server upload
WhatsApp ready
Lighter PDF & photos
Built for daily use
Replace heavy online PDF tools.
Compress, convert, merge and read in one simple app on your phone.
Convert images ↔ PDF
Build a PDF from photos, or export pages as images.
Merge & split
Combine several PDFs or extract the pages you need.
Native PDF reader
Fullscreen, zoom, search and share in one tap.
Recents & favorites
Find processed files fast, with no account or cloud.
Crop before send
Frame and rotate photos before compressing them.
Simple workflow
From opening a file to sharing.
Ideal for WhatsApp, email, Messenger and daily mobile use.
1
Pick a file
PDF or photos from your phone.
2
Compress or convert
WhatsApp, Email, Max, merge, split.
3
Check the result
Before / after sizes and local preview.
4
Share
WhatsApp, email or any other app.
Why LightDocs
Keep your documents on the device.
LightDocs processes PDF and photos locally. No need to upload files to a server to compress or convert.
On-device processing
Compression and conversion on your phone.
No account
Install and start right away.
Free to start
Light ads. iOS Premium removes ads.
Android & iPhone
Available on Google Play and the App Store.
Preview
See the app
Recents, tools, reader and crop, all on your phone.
Pricing
Free to start
iOS Premium to remove ads.
Free
$0
Core tools with light ads.
- Compress, convert, merge
- PDF reader & recents
- Android & iOS
Premium
≈ $4.99
One-time purchase, non-renewing.
- No ads
- Unlimited Max quality
- Restore via App Store
Android
Free
AdMob-funded, no subscription.
- All on-device tools
- Banner / interstitial ads
- No account required
FAQ
Questions about LightDocs
Does LightDocs work offline?
Yes for core tools. After the free quota, Internet may be required for AdMob ads, unless you have Premium.
Do I need an account?
No cloud account is required.
What can I do with LightDocs?
Compress PDF and photos, convert images ↔ PDF, merge, split, crop and read PDFs.
Do my files leave my phone?
Processing stays local. AdMob ads use the Internet. See the privacy policy.
Available on iPhone and Android?
Yes. App Store and Google Play links are on this page.