LightDocCompress your images easily
Fast compression, PDF conversion and 100% offline processing.
Why LightDoc?
Smart compression
Drastically reduce file size without sacrificing readability.
Quality control
Adjust compression level with instant preview.
PDF & image formats
Convert documents to PDF or export as JPG / PNG.
Fast • Offline • Privacy-first
LightDoc: compress images and create PDFs, offline
LightDoc shrinks your photos and converts them to PDF right on your phone, with no internet connection. It is the tool for getting under the 2 MB limit of an official website, attaching proof to an administrative file, or turning a PNG into a JPG.
Smart compression keeps excellent visual quality, and the live preview shows the estimated size before you save. A built-in editor lets you crop, zoom and adjust the image before export. JPG, PNG and HEIC are supported.
Your documents never leave your device: nothing is sent to a server. The Premium version, a one-time purchase with no subscription, adds EXIF data removal, batch compression, PDF merging and ZIP export.
LightDoc frequently asked questions
How do I shrink a photo for an official website or an administrative file?
Import the image, adjust the compression and follow the live size estimate: aim for the requested limit (for example under 2 MB), then save. You can crop before exporting.
How do I convert a HEIC photo to JPG?
LightDoc handles HEIC, JPG and PNG: import the HEIC photo, then export it as a JPG, a format accepted by almost every website.
How do I turn several photos into a single PDF?
Select your images to get a PDF ready to send. Merging several files into a multi-page PDF is part of Premium.
Why remove EXIF data from a photo?
EXIF data holds the date, the device and sometimes where the photo was taken. Removing it before sharing protects your privacy (a Premium option).
Does LightDoc work without a connection?
Yes: everything is processed locally on your phone, with no file upload and no connection. Your supporting documents and personal files never leave your device.
What does Premium include, and is there a subscription?
No, Premium is a one-time purchase with no subscription. It adds batch compression, PDF merging, EXIF removal and ZIP export.
