Artwork formats and upload limits

Check supported artwork formats and the size limits for image uploads, copy sheets, JSON files, and Voice Trainer samples.

Before you begin

  • Keep an original copy of your artwork.

How it works

Choose the file type that matches the task: an image for artwork, a spreadsheet for batch copy, or JSON for individual artwork instructions.

Steps

  1. Artwork images

    Upload PNG, JPG, JPEG, TIF, or TIFF. One upload supports up to 200 files and 3 GiB in total. Each artwork can be up to 2 GiB.

  2. Copy sheets

    Use CSV or XLSX, up to 2 MiB per sheet. Match rows to artwork by filename or filename stem.

  3. Individual instructions

    Use a JSON file up to 2 MiB with the same filename stem as the artwork.

  4. Voice Trainer samples

    Upload up to 10 DOCX, PDF, TXT, CSV, JPG, JPEG, or PNG files. Combined extracted text can be up to 120,000 characters.

Expected result

Your files use a supported format and fit the limits for the task.

Good to know

  • Storage services and print providers can set lower file limits.
  • The artwork still needs enough pixels for the intended print size.
  • A pasted image may have fewer pixels than the original.
  • Save CSV files as UTF-8 and JSON files as valid UTF-8 JSON.
  • Each CSV or XLSX copy sheet is limited to 2 MiB. ArtDrop does not currently set a row-count or per-cell character limit.
  • Voice Trainer accepts up to 10 files per request: DOCX, TXT, PDF, CSV, JPG, JPEG, and PNG. ArtDrop does not currently set a per-file byte limit for these samples. Combined extracted text is limited to 120,000 characters.

Troubleshooting

  • A file was rejected? Check its format and size, then read the upload message.
  • An image will not process? Confirm it opens in an image editor and export it again if needed.
  • A sheet or JSON file was ignored? Check its filename and format.

How to undo or clean up

Correct rejected files before uploading them again.