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2026-05-19

Postprep vs. Pixel Sheet: Which Tool Actually Fixes Canva Bulk Create?

Both tools solve the same Canva Bulk Create image problem. Here's what's different — and which one fits your workflow.

Pete B.
Pete B.
Founder, Postprep

Canva Bulk Create won't read image URLs. If you've hit that wall, you've probably landed on one of two tools trying to fix it: Postprep or Pixel Sheet.

They both solve the same core problem — converting image data into the embedded XLSX format Canva actually accepts. But they're built for completely different workflows, and the wrong choice wastes either money or time.

Here's the breakdown.

What Both Tools Do

Canva Bulk Create requires images to be physically embedded inside an XLSX file using a format called DrawingML. A URL in a cell doesn't work. A =IMAGE() formula doesn't work. The file has to contain the actual image data.

Both Postprep and Pixel Sheet produce that file. The difference is how you get your images into the process.

The Core Difference: Where Your Images Live

Pixel Sheet is built around Google Drive. You point it at a folder, it scans the images inside, and it exports an XLSX with everything embedded. If your workflow already runs through Google Drive — designers dropping assets into shared folders, a Drive-organized product library — this feels natural.

Postprep is built around image URLs. You bring a CSV with a column of image URLs (from Shopify, Etsy, a product feed, anywhere), and Postprep fetches each image, embeds it, and hands you back a clean XLSX. If your images already exist somewhere on the internet — which they do if you sell on Shopify or Etsy — you don't need to move anything to Drive first.

This is the fork in the road. The rest follows from it.

Side-by-Side Comparison

Postprep Pixel Sheet
Price Free up to 100 rows; $9 one-time unlock $99 one-time (limited to 100 users)
Account required No — runs in the browser, no signup Yes — Google OAuth + Drive access
Image source Any image URL (Shopify, Etsy, any CDN) Google Drive folders only
Setup friction Upload CSV, pick column, download Google auth + "unverified app" approval
Works with Shopify exports Yes — uses Image Src column directly Only if images are also in Drive
Works with Etsy exports Yes — uses listing image URLs directly Only if images are also in Drive
Folder/subfolder processing N/A — URL-based workflow Yes
Resume interrupted jobs N/A — runs in under a minute Yes
Availability Open to everyone Capped at 100 users
Canva Bulk Create compatible Yes Yes

When Postprep Wins

If you're an e-commerce seller, this one isn't close.

Your Shopify store already has a CDN-hosted image for every product. Your Etsy shop already has URLs for every listing photo. You don't need to download those images, organize them into Drive folders, and re-upload them somewhere else. That's a lot of extra steps to end up in the same place.

With Postprep, the workflow is:

  1. Export your product CSV from Shopify or Etsy
  2. Upload to Postprep, select the image column
  3. Download the embedded XLSX
  4. Import into Canva Bulk Create

That's four steps. The images never touch your desktop.

The price difference is also hard to ignore. $9 vs $99 for essentially the same output. If you're a solo seller or small creator, that's a meaningful gap.

And unlike Pixel Sheet, Postprep is open to everyone. No user cap, no Google consent screen, no "this app is unverified" warning to explain to clients or team members.

When Pixel Sheet Wins

Pixel Sheet has a real use case: teams whose images live in Google Drive and nowhere else.

If you're a marketing agency with a shared Drive library, or a content creator who shoots and organizes everything in Drive before it ever touches a product page, Pixel Sheet handles the folder-to-XLSX step without requiring public URLs. That's genuinely useful if your images are private Drive files that don't have accessible URLs.

The resume-job feature is also worth noting if you're processing very large batches — though most Canva workflows top out well under the threshold where that matters.

The Shopify/Etsy Reality Check

A lot of people buying tools like this are Etsy sellers and Shopify store owners trying to scale their content production. For that specific use case, Pixel Sheet introduces friction that Postprep removes.

To use Pixel Sheet as an Etsy seller, you'd need to:

  • Download your product images from Etsy (Etsy doesn't give you a bulk download option)
  • Upload them to a Google Drive folder
  • Run Pixel Sheet against that folder
  • Export the XLSX

To use Postprep, you'd need to:

  • Export your Etsy CSV (takes 30 seconds)
  • Run it through Postprep

If your images are already on the internet — and they are, on every platform that hosts your listings — using them directly is just faster.

Frequently Asked Questions

Can Postprep handle images that aren't publicly accessible?

Postprep fetches images via URL, so they need to be publicly accessible. For most e-commerce use cases (Shopify CDN, Etsy CDN, any hosted product photo) this isn't an issue — those URLs are always public.

Does Pixel Sheet work if I don't use Google Drive?

No. Pixel Sheet is a Google Workspace add-on that requires Drive access. If your images aren't in Drive, you'd need to upload them there first.

Is the $9 Postprep unlock per file or permanent?

It's a one-time unlock that removes the row limit — not per-file. You pay once and process as many rows as you want going forward.

What happens when Pixel Sheet hits its 100-user cap?

According to their site, new signups close once the cap is reached. If you're evaluating tools now and they're already capped, Postprep is available without restrictions.

The Short Version

Both tools produce an embedded XLSX that Canva Bulk Create will actually accept. They just start from different places.

If your images are already hosted somewhere — a Shopify store, an Etsy shop, a product feed, any URL — Postprep is the faster, cheaper path. Upload a CSV, pick the image column, get the XLSX.

If your images live exclusively in Google Drive and nowhere else, Pixel Sheet covers that specific workflow.

For most e-commerce sellers and content creators, the images are already on the internet. Use them.

Try Postprep free at postprep.app — 100 rows, no account required.

Try it free

Canva Bulk Create with real embedded images.

Upload your CSV or XLSX. Select your image column. Download a Canva-ready file. Free for up to 100 rows — no account needed.

Try Postprep →
Pete B.

Written by

Pete B.

Pete is a small business owner who got tired of social media eating his evenings. Posting product graphics across channels used to mean opening Canva, dropping in each image by hand, and repeating that for every listing and every platform. He kept hitting the same wall: Canva Bulk Create can save hours, but it refuses to read image URLs from a spreadsheet — turning a 5-minute workflow into a 2-hour copy-paste job. So he built Postprep to fix that one specific limitation, and writes about bulk content workflows, design tool limitations, and shipping social content without burning out.

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