How to Set a PDF File Name Before Submitting a Form by Email
Question details
The user wants to automatically rename a completed PDF form based on specific form field values before submitting it as an email attachment.
- Product
- PDF Forms / Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Submitting a filled PDF form via email and ensuring the attachment has a structured, recognizable filename based on the form's content.
- Observed behavior
- The default PDF filename is used unless customized via scripting to dynamically save a uniquely named copy prior to submission.
Ensure you have access to the JavaScript API documentation for your PDF editor and that script execution is allowed in your security settings.
Use JavaScript to Save and Email a Renamed Temporary PDF
You can use the PDF JavaScript API to extract form fields, automatically rename the file, save it to a temporary folder, and attach it to an email.
To customize the filename of an emailed PDF form, you must utilize document-level JavaScript to intercept the submission process. The script will pull values from fields like 'Name' or 'Date', generate a new filename, save a temporary copy to the user's system, and then email that specific copy.
Note that this workflow depends heavily on the recipient's PDF viewer security restrictions and version. Ensure that your script sanitizes the extracted text to avoid invalid filename characters.
Open your PDF form in Adobe Acrobat and navigate to **Tools** > **Prepare Form**. Click the **More** icon and select **Document JavaScripts** to add a new script.
Write a script to read your target fields using a method like `this.getField("Name").value`. Use a Regular Expression to strip out characters that are invalid in filenames (e.g., slashes, colons, or asterisks).
Use the `app.getPath()` function in your script to define a temporary folder location on the user's system where the renamed file can be safely stored.
Execute the `this.saveAs()` method, passing the newly constructed filename and temporary path to save a copy of the completed form.
Use the `this.mailDoc()` function to submit the renamed temporary copy via email. Configure your script to close or remove the temporary file afterward to prevent clutter.
Rename and Share PDF Forms Easily with WPS Office
While scripting offers automation, WPS PDF provides a highly intuitive interface to quickly fill, save, and email PDF forms manually without any coding knowledge. It is perfect for users seeking a straightforward way to manage and share documents.
- 1. Fill the PDF Form: Open your PDF form in WPS Office and use the **Form** tab to easily fill in all the required fields.
- 2. Save and Rename: Click the **Menu** button in the top left corner and select **Save As** to create a distinct copy of the file.
- 3. Enter Custom Filename: Type your desired file name (e.g., combining the client's name and date) in the dialog box and click **Save**.
- 4. Access the Share Tool: Navigate to the **Share** button located in the top right corner of the WPS PDF interface.
- 5. Email the Document: Select **Email** from the dropdown menu to instantly attach the newly named PDF to a blank message in your default email client.
Frequently Asked Questions
What characters should I avoid when naming a PDF file via script?
When dynamically generating a filename with JavaScript, avoid characters like slashes (/, \), colons (:), asterisks (*), question marks (?), quotes ("), and angle brackets (<, >) as they are universally invalid in operating system file paths.
Can I use the current date and time in the PDF filename?
Yes. You can use JavaScript's built-in Date object to pull the current system date and time, format it as a standardized string (e.g., YYYY-MM-DD), and append it to your PDF filename before executing the save command.
Why doesn't my PDF JavaScript execute when users open the form?
Modern PDF viewers heavily restrict JavaScript execution by default to prevent malicious actions. Ensure that JavaScript is enabled in the recipient's PDF reader preferences, or implement trusted functions if you are deploying the form in a controlled enterprise environment.
