FileTrio
Your files. Your device. Your privacy.
PDF, image & QR tools that work entirely on your device. Merge PDFs, compress images, resize photos, create QR codes, and more — without uploading your files.
Private by design.
Most online PDF, image, and QR tools quietly upload your file to a server before doing anything with it. FileTrio doesn’t. Every tool on this page runs as JavaScript in your own browser tab — reading the file with the File API, processing it with pdf-lib and the Canvas API, and handing you back a download. Nothing is ever transmitted anywhere.
No accounts
Open a tool and start working. There's nothing to sign up for, and nothing tied to your identity.
No uploads
Every merge, resize, and QR code is generated in memory, in this tab. Your files never touch a network request.
No tracking
We don't run analytics on what you convert or create. What you process here stays on your device.
How it works
Step 1
Select a file
Drop in a PDF or photo, or click to browse. Nothing uploads yet — it's still just sitting in this tab.
Step 2
Processed on your device
FileTrio reads and transforms the file locally, right in your browser. It never touches a server.
Step 3
Download the result
Get your merged PDF, resized photo, or QR code back as a normal download, ready to use.
Three tool categories. One private toolbox.
Pick a tool below. Each one runs entirely in this browser tab — your files are read, processed, and downloaded without ever being sent anywhere.
PDF
Images to PDF
Turn one or more photos into a single PDF, one page per image.
- One image per PDF page, sized to match each photo
- Reorder or remove images before creating the PDF
- Supports JPEG and PNG (HEIC isn't supported in-browser)
PDF
Merge PDF
Combine multiple PDF files into one, in the order you choose.
- Combine multiple PDFs into one file
- Reorder or remove files before merging
- No limit beyond 50MB per file
PDF
Split PDF
Pull specific pages or ranges out of a PDF into a new file.
- Pick individual pages or ranges like 1-3,5
- Extracted pages become a brand-new PDF
- Page count shown before you choose
Image
Compress Image
Shrink a photo's file size at High, Medium, or Small quality.
- High, Medium, or Small quality presets
- Re-encodes to a smaller JPEG
- See the before-and-after file size
Image
Crop Image
Center-crop a photo to a square or a common aspect ratio.
- Original, 1:1, 4:3, 16:9, or 3:4 portrait
- Largest centered crop for the chosen ratio
- Live preview before you download
Image
Convert Image
Switch a photo between JPEG, PNG, and WebP.
- Convert between JPEG, PNG, and WebP
- Transparent PNGs get a clean white background in JPEG
- Dimensions stay unchanged
Image
Resize Image
Resize to exact dimensions or a ready-made social preset.
- Instagram Square (1080×1080) or Portrait (1080×1350)
- Facebook Post (1200×630) or Cover (820×312)
- LinkedIn Post (1200×1200) or a custom width and height
QR
Generate QR Code
Create a QR code for a link, text, Wi-Fi, contact, and more.
- URL, Text, Wi-Fi, Email, Phone, or Contact card
- Live preview as you fill in the details
- Download as a PNG