K1 Photo File Upload: sell custom products without the file chaos
Let buyers attach photos, artwork, and documents to any product — up to 1 GB per file. Every upload is virus-scanned and encrypted on SOC 2 + ISO 27001 certified infrastructure.
First 50 uploads are free
What is a file upload on Shopify?
A file upload field lets customers send you what they want printed, engraved, or made — right on the product page, before they pay. File uploads help merchants:
K1 Photo File Upload makes it work on any Shopify theme — no coding required.
Why choose K1 as your Shopify File Upload app
We go all-in on the things other upload apps treat as optional
Enterprise-grade protection for every file
Most apps: files sit on ordinary hosting and download straight to your desk, unchecked.
K1 Photo File Upload: every upload is virus-scanned before download unlocks, and stored encrypted on certified infrastructure.
- SOC 2 + ISO 27001 certified
- AES-256 encrypted & antivirus-scanned
- Hourly offsite backups
Get the file you actually need
Most apps: buyers upload anything, and you find out it's unusable after the order is paid.
K1 Photo File Upload: requirements are enforced before the upload even starts, and shown right in the widget.
- Min / max file size & count
- Image dimension limits
- Rules shown on the storefront
Uploads that survive anything
Most apps: a few megabytes per file, and a dropped connection means starting over.
K1 Photo File Upload: resumable uploads up to 1 GB that pick up exactly where they left off.
- Survives dropped connections
- Any file type
- No compression, print-ready
Speak your buyer's language
Most apps: English-only labels that break the checkout experience for international buyers.
K1 Photo File Upload: every label, error and consent message is localized automatically — and fully editable.
- All major storefront languages
- Every label and error editable
Real human. Real fast. Shipped in 48 hours
Most apps: ticket queues, bots, and feature requests that land "sometime next quarter."
K1 Photo File Upload: founder-led support — you talk directly to the people who built the app, and requests actually ship.
- 48-hour feature delivery
- Theme fixes within 24 hours
- Same-day issue resolution
What K1 Photo File Upload does right now
The complete feature list of right now
Per-product upload rules
Target exactly where the upload field appears, with its own settings each time
- Set upload fields per product, variant, or entire collection
- Unlimited rules running at the same time
- Each rule gets its own title, description and button label
Any file type, your rules
Accept exactly what your workflow needs and block everything else
- JPG, PNG, PSD, PDF, Excel, ZIP and video out of the box
- Custom accepted-type rules for anything else
- Up to 1 GB per file with resumable uploads
Files attached straight to the order
Uploads land on the order itself — no inbox archaeology
- Secure links appear right on the Shopify order
- 256-bit secure download links, expire-safe
- Download any file from the admin in one click
Upload manager in admin
Every file in one table, with live antivirus status
- Scanning, Ready and Quarantined states at a glance
- Filter by rule, order, size and date
- Delete or download any file, any time
Automatic order tags
Tag orders that carry uploads so fulfilment can filter instantly
- Custom tags applied per rule
- Filter and bulk-process orders in Shopify admin
- Works with your existing fulfilment workflows
Multilingual translation
Every customer-facing string localized automatically
- Auto-translated into all major storefront languages
- Widget labels, errors and system messages all editable
- Per-rule translations for custom widget text
Consent & terms checkbox
Collect explicit agreement before a file is accepted
- "I agree to the terms" with your own link
- Required before the upload completes
- Supports GDPR-driven approval processes
Design flexibility
The upload field looks like part of your theme, not a bolt-on
- Inherits your theme styling by default
- Full control over colours, text and sizing
- Custom CSS available for edge cases
Simple file upload app pricing
Start free with 50 uploads, scale up as you grow
Free
50 uploads (lifetime, across all orders). Test K1 Photo File Upload on a small scale.
Features
- 50 uploads (lifetime limit)
- 5 GB encrypted storage
- 90-day file retention
- Antivirus & 30-day backups
Starter
7-day free trialUp to 500 uploads per month.
Features
- 500 uploads per month
- 20 GB encrypted storage
- 1 GB max file size
- 60-day money-back guarantee
Growth
Most popularUp to 2,000 uploads per month.
Features
- 2,000 uploads per month
- 50 GB encrypted storage
- Free widget customization
- Founder-led premium support
Pro
7-day free trialUp to 10,000 uploads per month.
Features
- 10,000 uploads per month
- 200 GB encrypted storage
- Custom plan on request
- Founder-led premium support
All plans include 90-day file retention, 1 GB max file size, antivirus scanning and 30-day backups.
Frequently Asked Questions
K1 Photo File Upload adds a drag-and-drop field to your product page through Shopify's native App Embed system — no theme code required. Buyers attach their file before adding to cart, the file is virus-scanned and stored encrypted, and secure download links appear directly on the order in your Shopify admin.
Ready to take files the safe way?
2-minute setup on any theme — your first 50 uploads are free