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How to Send Transparent Images via DM on LINE and X
Have you ever sent a transparent PNG image via DM on LINE or X (formerly Twitter) only to find that the background appears black or white on the recipient's screen...?
It can be problematic when dealing with images like illustrations, streaming assets, VTuber character designs, and logos where the transparency is crucial.
This issue can occur when the service compresses or converts the format of the image during transmission, resulting in the loss of information regarding the transparent areas.
A convenient and recommended way is to send the PNG file itself instead of sending the image as a regular photo. If file sending is difficult, using a free file uploader is also an option.
How to Send Transparent PNGs via LINE
When sending a transparent PNG as a regular photo on LINE, depending on the device and sending method, the transparent areas may appear white or not display correctly at all.
If you wish to maintain the transparent state, let's try the following methods.
Method 1: Send as a File
The first recommended method is to send the image not as a photo, but as a file.
- Save the transparent PNG image you wish to send on your device.
- Open the chat screen with your contact on LINE.
- Select the PNG image from the file attachment feature.
- Send it to the recipient, who can then download the original file on their end.
On a smartphone, you can also select the image from a file app and share it. Since the steps may differ depending on your device and the version of LINE, if you cannot send it as a file, consider using the PC version of LINE or the uploader mentioned later.
The key point is not to judge the sent image solely based on the preview screen. It may look like a white background in the thumbnail, but the downloaded original file might still maintain transparency.
Method 2: Send from the PC Version of LINE
If you have access to a computer, you can also send transparent PNGs via the PC version of LINE.
- Open the settings in the PC version of LINE.
- Set the photo resolution to "Original" from the "Chats" section.
- Send the desired PNG image by file attachment or drag-and-drop.
- On the recipient's side, have them download it in original quality and check if the transparency is maintained.
This method is based on verification that transparent PNGs can be sent via the PC version of LINE. However, the settings and compatibility may vary between versions. Selecting original quality does not guarantee transparency in all environments.
Method 3: If File Sending is Not Possible, Share via URL
If sending as a file from your smartphone is difficult, or if you want to send multiple images at once, using a file uploader can be very handy.
For example, with the free file uploader "UploadF," you can upload your transparent PNG and simply paste the issued URL into your LINE chat.
The recipient can open the URL and download the file. This is convenient when you want to avoid LINE's image conversion and simply pass along the original PNG file without needing to resend it as a photo.
How to Send Transparent PNGs via DM on X (formerly Twitter)
On X, uploading a transparent PNG image may also result in the transparent parts appearing white or losing their transparency.
Various factors such as the image format, size, and upload method on X can affect this. Particularly, the results may differ between posting via the app and posting via a browser, so let's try the following methods.
Method 1: Share via Uploader with PNG Files
If you want to pass the original transparent PNG directly to someone, it is simple to send the download URL of the file via DM.
- Prepare the transparent PNG image.
- Upload the image to UploadF.
- Copy the shared URL issued.
- Paste the URL into the DM on X and send it.
- Have the recipient download the PNG file from the URL.
Since there is no need to upload the image itself to X, this method helps to avoid the loss of transparency due to image conversion on X.
UploadF supports both PC and smartphone and allows simultaneous uploads of multiple files as well as options for setting saving periods. It is also convenient for transmitting multiple files such as streaming materials or illustrations.
Method 2: Posting Transparent PNG via Browser (No Longer Available)
Previously, converting to PNG-8 format and keeping the long side of the image below 1600 pixels maintained transparency as it was not compressed, but this feature has now been removed, and all transparencies will be canceled.
If your goal is to reliably deliver the original data, it is recommended to utilize a file sharing URL.
Other Services Where Transparency Might Be Lost
In addition to LINE and X, the transparency of PNGs can be lost during the conversion processes when uploading images.
Instagram is a service centered around photos and videos. When posting, images may be compressed and converted, which can prevent transparent PNGs from being maintained as such. The behavior may also differ depending on where the upload occurs, such as in the feed or stories.
If you want to hand over materials that maintain transparency, it is advisable to save the original PNG file on an uploader and share the URL via DM.
Discord
Discord can be used to share PNG images, but the transparency might appear as black or white depending on the preview display, theme, or upload method.
Do not make judgments solely based on the preview; verify by opening the image or downloading the original file to check it in an image editing software. If transparency is not maintained, consider trying to send the image as a file.
Email and Other Messaging Services
In email and other messaging services, automatic resizing or conversion of images can sometimes cause the transparent areas to be lost. However, not all services will lose transparency for PNGs.
If you can attach the original PNG file, attach it as a file instead of relying on the image preview, and always check the downloaded file.
Why Do Transparent PNGs Turn Black or White When Sent?
Transparent PNGs contain information that records the transparency of each pixel, known as the alpha channel, in addition to the color and shape information of the image. This information allows parts of the image to be transparent and show the background.
However, if the service to which it is sent converts the image to another format or fills the transparent areas with a specific color, this information may be lost.
For example, the JPEG format cannot save transparency. Therefore, when a transparent PNG is converted to JPEG, the transparent areas are replaced with a background color like white or black.
Also, even if transparent areas appear black, it does not necessarily mean that the original PNG data is corrupted. It is important to determine whether the issue is merely a preview problem or if the downloaded file itself has lost transparency.
Things to Check Before Sending Transparent Images
- Check that the original image is saved in PNG format.
- Verify in an image editing software that the transparent areas are displayed in a checkerboard pattern or similar.
- Try sending it as a file instead of a photo.
- Confirm the transparency status of the downloaded file on the recipient's side.
- If there are issues, share the original file via an uploader.
Especially when delivering illustrations or streaming materials, it is essential not only to maintain the visual appearance but also the file format.
UploadF is Also Convenient for Sharing Transparent PNGs
It can be cumbersome to check which app displays transparent images correctly every time you send one.
That’s where the free file uploader "UploadF" comes in handy.
UploadF (uploadf.com) can be used from both PC and smartphones and supports drag-and-drop uploads. Up to 100 files can be uploaded simultaneously, making it useful for sharing multiple illustrations or streaming assets.
You can set a saving period ranging from one day to unlimited, and it also supports password protection and individual file deletion. It can be utilized according to your recipient and purpose.
Additionally, it offers online image editing features such as cropping, resizing, rotating, flipping, and background transparency. This is convenient when you want to adjust the images before sharing.
When you have trouble sending transparent images via DM on LINE or X, instead of repeatedly trying to resend, consider uploading the original PNG file and sharing it via URL.
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