#116 · Batch & File Workflow Tool

Add Prefix to Image Filenames

Add a safe prefix to several image filenames at once and download renamed copies in a ZIP archive. Image bytes are copied into new archive entries without altering picture quality.

Image Tool

Multiple images
px
px
%
Ad space

How to use this image tool

  1. Select the image files.
  2. Review the available settings and choose values that suit the intended output.
  3. Run the tool, inspect the result, and download the newly created file.

What this tool does

Add a safe prefix to several image filenames at once and download renamed copies in a ZIP archive. Image bytes are copied into new archive entries without altering picture quality.

Input pixels or metadata → validated browser processing → new downloadable result

Results depend on browser decoding and encoding support. Keep the original file until you have checked the download.

Supported formats

The tool accepts browser-decodable image files. PNG, JPEG, and WebP provide the most consistent results.

FormatInputNotes
JPEGYesNo transparency
PNGYesSupports transparency
WebPBrowser dependentModern browsers

Tips for better results

  • Use a smaller test image before processing a very large batch.
  • Check important edges, text, and color after downloading.
  • Keep source files because canvas exports generally discard metadata.

FAQ

How does Add Prefix to Image Filenames handle my source file?

Add Prefix to Image Filenames reads the selected file in the current browser tab and creates a separate downloadable result. It does not upload the source image.

Does Add Prefix to Image Filenames preserve EXIF metadata?

Pixel-based canvas exports normally omit EXIF, GPS, and camera metadata. Filename-only ZIP processing keeps the original image bytes and their embedded metadata.

Why might Add Prefix to Image Filenames fail on a very large photo?

Browsers limit canvas dimensions and memory. The page rejects an unusually large pixel workload before it can freeze the tab.

Which input formats work with Add Prefix to Image Filenames?

PNG, JPEG, and WebP are the most dependable inputs. Other formats work only when the current browser can decode them.

Can I use output from Add Prefix to Image Filenames in commercial projects?

The processing does not grant new image rights. You still need permission for the source image and any names, logos, or notices included in the result.

Browser processing notes

StageBehavior
InputValidated locally
OutputCreated as a new Blob

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