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Do I need to compress images before uploading them to a Salla or Zid store?

Compress them before uploading. It takes a minute and puts the quality decision in your hands. Store platforms may process images after upload, but exactly what they do is theirs to document and can change, so check your platform's current guidance. When you upload a photo already prepared at sensible dimensions and quality, you know exactly what reaches your customer, whatever the platform does next.

Published · 3 min read

Why not leave it to the platform?

  • You do not know in advance whether the platform will re-compress the image, at what quality, or whether it keeps the heavy original and serves it somewhere, such as a zoom view.
  • An original phone photo can be several megabytes, and uploading dozens of them from your phone takes much longer.
  • If you upload originals and then notice the page is slow, you end up doing the work twice.
  • Preparing the photos yourself gives your whole catalog a consistent look instead of uneven results.

How much you actually save

Worked example

A 1600×1200 product photo of 689.5 KB, compressed in Chrome:

As JPEG at quality 80 with the dimensions unchanged: 250.9 KB, 63.6% smaller.

Reduced to 1200×900 and then quality 80: 123.8 KB, 82% smaller.

Note that the resized photo is still 1200 pixels wide, which allows a reasonable zoom on the product page. Do not cut the dimensions too far to win a few kilobytes: a customer zooming in to see the stitching or texture will get a blurry picture. Look up the recommended product image dimensions in your platform's guidance and stick to them.

Preparing store photos, step by step

  1. Gather the new product's photos in a folder and give them clear names, such as the product name and color.
  2. If they are at full camera resolution, reduce them with the Image resizer to the width your platform recommends, saving the output as PNG so the compression that follows is the only step that drops detail.
  3. Add them to the Image compressor and choose JPEG at quality 80, or WebP if your platform accepts it and it comes out smaller on your photos.
  4. Check the table and the preview, then download the ZIP and upload the photos from your store dashboard.
  5. After publishing, open the product page on your phone and confirm the photos look sharp and load quickly.

Should I redo photos I already uploaded?

If your older photos went up at huge sizes, preparing them again is worth the time, but start from the originals you kept, not from images downloaded off your store page. Those may already have been processed by the platform, and compressing them again can make them bigger or add artifacts. Begin with your most visited products, since that is where customers feel the difference first.

Common questions

Do Salla and Zid accept WebP?

We do not speak for the platforms. Check your platform's help pages, and if you are unsure, choose JPEG.

Does compressing strip the location from my photos?

Yes, compressed photos carry no EXIF data, which helps if you shoot products at home.

What quality is best for product photos?

Start at 80 and judge by eye. Products with fine detail may need 85.