How to Fix PDF Sending as Image via MMS and Email on Mobile
Question details
The user is unable to send PDF documents properly via text messages and email, as the files are converted into images and lose functional hyperlinks.

- Product
- Acrobat Reader Mobile / Mobile PDF Viewers
- Device & OS
- not provided
- Scenario
- Attempting to share a PDF document with contacts through mobile text messages (MMS) or email clients.
- Observed behavior
- The PDF fails to send via text message. When sent via email, it displays as an inline image instead of a file attachment, causing inserted links to become unclickable.
Ensure your mobile device is connected to a stable network, and verify that your PDF file size does not exceed the typical MMS limit (usually 1MB to 3MB) or email attachment limit (usually 20MB to 25MB).
Send the PDF as a Direct File Attachment
By explicitly attaching the PDF as a document file rather than inserting it directly into the body of the email, you ensure the file retains its formatting and hyperlinks.
Many mobile email clients default to inserting visual files directly into the body of the email (inline). Changing how you insert the file resolves this.
Launch your preferred mobile email app, such as Gmail, Outlook, or Apple Mail, and tap 'Compose' to start a new message.
Look for the paperclip icon usually located at the top or bottom of the compose window and tap it. Do not use the 'Insert Image' or 'Photos' option.
Choose the 'Document' or 'File' option to open your device's file manager.
Navigate to the folder where your PDF is saved, select the file, and ensure it appears as a separate attachment block in your email before sending.

Share via a Cloud Storage Link
Because MMS has strict file size limitations that often corrupt PDFs or convert them to images, sharing a cloud link is the most reliable method for text messaging.
Update Your PDF Viewer App
Outdated versions of mobile PDF viewers may contain sharing glitches that incorrectly format files when passed to other applications.
Use WPS Office to Share PDFs Without Format Loss
WPS Office for mobile offers robust PDF viewing and sharing capabilities. You can easily share PDFs as original file attachments or generate secure cloud links directly via email, WhatsApp, and SMS without losing hyperlinks or image quality.
- 1. Install WPS Office: Download and open the free WPS Office app on your mobile device.
- 2. Open your document: Locate and open the PDF file you wish to share within the WPS Office app.
- 3. Access sharing options: Tap the 'Share' icon located at the bottom toolbar of the reading screen.
- 4. Select the optimal sharing method: Choose 'Share as File' to send it cleanly to your email client, or select 'Share as Link' to easily copy and paste into an SMS/MMS message.

Frequently Asked Questions
Why does my PDF send as an image in a text message?
MMS (Multimedia Messaging Service) is primarily designed to handle images, audio, and short videos. Many default mobile texting apps automatically convert document files like PDFs into image files to fit the MMS format constraints, which flattens the file and removes interactivity like hyperlinks.
How can I send a large PDF file via email on my phone?
Most email providers restrict attachments to 20-25 MB. If your PDF is larger than this, you should upload the file to a cloud service (such as WPS Cloud, Google Drive, or iCloud) and share the generated link via email rather than attaching the file directly.
Why are the hyperlinks in my PDF not working after I share it?
If a PDF is inserted into an email as an inline picture or converted by a texting app during transit, its text and link layers are flattened into a single static image. To preserve clickable hyperlinks, you must send the document as a direct file attachment or as a shareable cloud link.




