Fix PDF Signature Fields Disappearing When Sent via Email
Question details
Users are experiencing an issue where signature fields added to a PDF document disappear or become invisible when the file is sent to another person for signing.
- Product
- Device & OS
- not provided
- Scenario
- Sending a prepared PDF document with signature fields to another person via email so they can add their electronic signature.
- Observed behavior
- The signature fields are lost, removed, or simply do not display when the recipient opens the document from their email.
Ensure you are not simply saving a local copy with blank form fields and attaching it to a standard email, as many basic email clients and web browsers strip interactive fields when viewing.
Use a Dedicated Request-Signature Workflow
To ensure signature fields remain intact and functional, the document must be sent through a certified e-signature platform rather than as a regular email attachment.
Standard email attachments often rely on the recipient's default PDF viewer (like a web browser), which may not support interactive form fields. By using a designated e-signature process, the document is hosted securely, and the recipient is guided through a compatible signing interface.
Launch an e-signature platform such as Adobe Acrobat Sign, WPS PDF, or another supported signing tool.
Import your PDF into the tool and use the software's built-in interface to drag and drop signature fields exactly where you need them.
Instead of saving the file locally, click the 'Send for Signature' or 'Request e-signature' button within the application.
Type in the recipient's email address and send the request. The platform will email them a secure link to sign the document with the fields preserved.
Easily Add and Request Signatures with WPS PDF
WPS Office provides a comprehensive suite of PDF tools, allowing you to seamlessly add signature fields, sign documents electronically, and share files without losing formatting or interactive elements.
- 1. Open your document: Launch WPS Office and open your PDF file using the WPS PDF tool.
- 2. Navigate to signature tools: Click on the 'Fill & Sign' or 'Protect' tab located on the top ribbon menu.
- 3. Add a signature: Select the 'Signature' option to create your own signature, or use form tools to place empty fields for others.
- 4. Share the document securely: Use the built-in share feature to generate a secure link or send the PDF directly from WPS to ensure data integrity.
Frequently Asked Questions
Why do interactive form fields disappear when viewed in a web browser?
Many default web browser PDF viewers (like Chrome, Safari, or Edge) prioritize fast text reading and lack full support for interactive PDF form fields. Tell your recipients to open the document in a dedicated PDF reader instead.
Can I flatten a PDF to ensure my signature stays visible?
Yes. If you have already signed the document yourself, 'flattening' the PDF merges the signature into the document's background image, ensuring it won't disappear regardless of the viewer used. However, you should not flatten a document if you still need other people to sign empty fields.
Does saving a file as 'Print to PDF' remove signature fields?
Yes. Using the 'Print to PDF' function effectively takes a static snapshot of the document. This strips away all interactive capabilities, which deletes any empty signature fields.
What should I do if the recipient's email client strips attachments completely?
Use a secure file-sharing cloud link or an e-signature service. These services email a clickable link to the document hosted on a secure server, completely bypassing the file attachment restrictions of standard email clients.
