A form allows up to 2 MB and the photograph from your phone is 5 MB. Before dragging quality to its lowest setting, find out where and how large the form will display the picture. Extra pixels can make the file larger than a small card needs.

Read what the limit measures

The warning may refer to bytes, pixel dimensions, file format, or total upload size. Check the units. If the form lists both per-file and total limits, calculate them separately. Leave some room below the threshold in case the service measures units differently.

Remove unnecessary area first

Crop away unused space and choose the pixel dimensions you need. A card displayed 360 pixels wide may not require a 4000-pixel source. Keep the original and make a test copy. If the image contains fine text, check that it stays readable at this stage.

Try format and quality in order

For a photo, compare the allowed JPEG or WebP options. When transparency or sharp lettering matters, see what the chosen format does to those details. Export a few quality settings at the same dimensions. Compare the byte count and the important part of the image at its intended size.

Upload the final copy

Reopen the file to verify orientation, crop, and colour. Check the extension and filename. If you are uploading several files, add their sizes again. Review the upload preview and keep the original and accepted copy in separate places.

Work through one size limit

Imagine a form that allows 2 MB per image and a document photograph that weighs 6 MB. Check the form for limits on pixel dimensions, formats or pages as well. If the photo contains a broad area of desk around the document, crop it away. Before resizing, determine how small you can make the text and still read it. Try one export with a shorter long edge and a second at the original dimensions with a different quality setting. Make both from the master. An export that sits right at the limit can fail because of rounding or a later change to the file. Leave some room below the limit if the writing stays legible. For a product photo, your test detail might be a serial number, a seam or a scratch. Aim to deliver the detail the recipient needs as well as a file the form will accept. Record the accepted dimensions so you have a starting point for the next page of the same document.

Review the export in the upload workflow

Save the cropped version under a different name and confirm that name in the upload field. A phone's file picker may show nearly identical thumbnails for the old and new files. Selecting the wrong one can make it seem as though the export settings failed. If the form rejects an upload, read the error. A file extension and the real format can differ, and renaming an extension does not convert anything. For multiple files, calculate the per-file limit and the combined limit separately. Each picture may pass on its own while the group exceeds the total. Send one sample first and inspect the resulting preview and any available download. The form may process the image again, changing what the recipient sees. Keep a record of the exact file that worked. For an important document, use the actual delivery confirmation or reference number to check that it reached the intended application. You can then distinguish a completed submission from a thumbnail that simply appeared in the file selector.