Ask the recipient to inspect the saved file, not merely the chat preview. Compare dimensions, byte size and the detail needed for printing with your source. If exact file identity matters, compare a checksum obtained from the two saved files. A sharing interface’s “Original” label is not a substitute for that receipt.
Start with the actual handoff path
A Chinese user discussion about sending original images illustrates this question, but its replies do not establish a universal rule for current WeChat versions. Device, application version and transfer route can differ. Record whether the print shop saved an image attachment, downloaded a file attachment or captured a screenshot.
Ask for a simple receipt: filename, pixel dimensions and byte size. Do not ask the shop to judge quality only by whether a thumbnail looks clear. Keep your source in a separate folder so the comparison is with the actual file you intended to deliver, not a later export.
Compare content before deciding how to resend
Open the same small lettering or facial area at comparable scale on both devices. Check for altered dimensions, changed orientation and new compression artifacts. A larger received byte size does not prove additional detail; re-encoding can produce a different file size without making the image more useful.
For exact-source work, a checksum comparison can establish whether two files have identical bytes. A mismatch shows that the files differ, but it does not by itself measure visible quality or identify which application changed them. Do not confuse “same pixels look acceptable” with “the files are identical.” Both can be useful acceptance criteria, chosen for different tasks.
A hypothetical print-order check
Suppose a portrait poster includes small event details. The sender’s master contains readable lettering, but the print shop’s saved copy does not. The shop reports smaller dimensions. The sender provides a supported file-transfer route, then asks for a new receipt. Once the received file matches the intended dimensions and passes the lettering check, the team proceeds to a print proof. No universal compression rate is inferred from this example.
Choose a transfer route the recipient can actually use
Apple’s video-sharing guidance offers examples of device-supported transfers; it is not a WeChat specification. For your photograph, use an appropriate file delivery method that both parties can open. Confirm access from the recipient’s account, not just from yours.
Create an approved visual through Imagild Skills, then deliver the downloaded master separately from an ordinary chat preview. Accept the handoff when the recipient’s saved file satisfies the agreed identity or visual criteria. Print suitability still requires the intended physical size, layout and proof checks; a perfect transfer does not fix a flawed master.