How to Batch Flatten Fillable PDF Forms Offline

Learn how to flatten multiple fillable PDFs forms at once on Windows, macOS, and Linux. Our guide provides you with steps, details, and tips on how to create and run a batch process to flatten completed PDF forms with Xodo PDF Studio .

Once data entry is complete, the focus for a PDF form workflow shifts to preparing those documents for distribution, archiving, or print production. This means flattening the PDF file and its form fields.

However, if you have multiple PDF forms that have been collected from a client database, it can be time consuming.

Instead of flattening each PDF individually, use a batch workflow to finalize multiple forms while preserving editable originals.

This guide covers the full Xodo PDF Studio process, including:

• How do you flatten form fields in multiple PDF files at Once?
• What does flattening PDF form fields change?
• Before you batch flatten PDF forms, save editable originals
• How to batch flatten PDF Forms Offline in Xodo PDF Studio
• How to review, name, and store flattened PDF files
• When should you avoid flattening a PDF form?
• PDF flattening vs. permissions, redaction, and sanitization
• Frequently asked questions

How do you flatten form fields in multiple PDF files at once?

To flatten multiple fillable PDFs at once, use Xodo PDF Studio. In the app, go to Batch > Flatten. Add the PDF files or the containing folder. Choose a separate destination and set your filename options. Lastly, confirm and start the batch process.

Once done, reopen the files to confirm the form values were preserved correctly. Xodo PDF Studio will each document individually using the selected batch settings.

What does flattening PDF form fields change?

Flattening PDF form fields merges the inputted values and fields directly onto the page content and background, removing their interactivity from the processed copy.

Text entries, selected checkboxes, radio-button choices, and other visible field states can therefore remain visible without being editable as form fields.

This process only flattens form fields, not every interactive element in the PDF. Form-field flattening doesn't automatically flatten a PDF document in its entirety with comments, annotations, layers, or other PDF elements.

It also doesn't encrypt, redact, or sanitize the PDF or guarantee that other page content cannot later be edited.

After flattening PDF forms:

• Field values no longer support normal data entry or calculations
• Flattened buttons no longer perform their original form actions
• Visible field values become part of the page content
• File size may change depending on the source PDF
• The processed fields cannot be restored to their original interactive structure

Note that form-field flattening can't be undone. As such, keep a copy of the editable original.

Before you batch flatten PDF forms, save editable originals

Before processing an entire folder, protect your editable originals and test how flattening affects a representative set of forms.

i) Keep editable PDF forms separate from flattened copies

Place approved forms in a source folder and create a separate empty folder for the flattened output. Avoid overwriting the originals, especially during your first batch.

Keeping the two versions separate gives you an editable source to return to if a field value, calculation, signature, or other form element does not flatten as expected.

ii) Test representative forms before running the full batch

Start with two or three PDFs that closely represent the different forms in your batch. Include a simple form and any forms with more complex or unusual elements.

Check calculated totals, multiline text, dropdown selections, buttons, signature fields, and other interactive elements in the flattened copies before processing the entire folder.

You can also review File > Preferences > Forms. Xodo PDF Studio provides flattening preferences for painting push buttons, image-only buttons, and non-printing fields.

iii) Check PDFs that may need special handling

Some PDF forms require additional testing before flattening:

• Calculated forms: Confirm final totals and other calculated values first. Once flattened, the result no longer behaves as an interactive calculation field. Xodo PDF Studio supports predefined and JavaScript-based form calculations.
• Digitally signed PDFs: Changing document content after applying a digital signature can affect signature validation. Test signed copies before adding flattening to a signing workflow.
• Protected PDFs: The batch dialog can try up to four open passwords, but document permissions may still affect what can be processed.
• XFA forms: Xodo PDF Studio supports AcroForms and AcroForms with static XFA. Dynamic LiveCycle XFA forms are not supported.

How to batch flatten PDF forms offline in Xodo PDF Studio

To batch flatten PDF forms offline, follow these steps:

1. Download and install Xodo PDF Studio on Windows, macOS, or Linux.
2. Go to the Batch tab > Flatten.
3. Click on Add Files or Add Folder.
4. Browse for, select, and add PDF forms individually or by folders to the queue.
5. Set the order, output settings, and file naming patterns for your processed files.
6. Add open passwords if needed to access the files.
7. Click to Start to run the batch process.

For flattening PDF forms as part of a larger recurring workflow, you can use the Xodo PDF Studio Action Wizard to automate PDF tasks and include it as part of the workflow.

How to review, name, and store flattened PDF files

After processing, compare the number of source PDFs with the number of flattened outputs. If a file is missing, isolate it and find the cause before releasing the batch.

Check flattened PDF files for missing outputs and field errors

Open a simple form, a complex form, and any exception files. Check that:

• Entered values and selections remain visible
• Fields no longer accept input
• Calculated values show the approved result
• Buttons and non-printing fields match your Forms preferences
• Signed files meet your organization’s signature requirements
• Fonts, spacing, page dimensions, and print output remain correct

Use consistent filenames that preserve the source identity

Use a consistent filename pattern that connects each flattened PDF file to its editable source. A practical for example:

employee-onboarding_flattened_2026-08-17.pdf

Keep each component in the same position across the batch. Add a case number, employee ID, or batch identifier when it helps distinguish files, but avoid placing unnecessary personal or confidential information in filenames.

Store editable originals separately from approved flattened copies

Keep originals in a restricted working location, then place approved flattened files in the designated distribution, archive, or records folder. Do not overwrite the source PDFs.

If the source files came from case, client, or department subfolders, preserve that structure in the output folder when it provides useful context. Apply the organization’s access and retention rules to both sets, and avoid using email attachments, download folders, or personal drives as an official storage location.

When should you avoid flattening a fillable PDF?

Flattening is best reserved for final copies that no longer need interactive fields or additional workflow steps.

Don't flatten the working copy, for instance, if someone still needs to enter data, run calculations, submit the form, or complete an interactive signing workflow.

Flattening is also not a substitute for PDF security. If your workflow involves sensitive documents, properly secure your PDF before sharing it.

Offline processing simply means the desktop workflow can be performed without uploading the PDFs to an online tool. Xodo PDF Studio supports offline use on Windows, macOS, and Linux.

It does not by itself establish compliance, confidentiality, or a complete document-security policy.

PDF flattening vs. permissions, redaction, and sanitization

Choose the right PDF control by matching each method to the specific content or action you need to manage. Each solves different document-control problems and may be used together.

• PDF flattening converts interactive form fields into static page content. Use flattening to finalize completed form fields.
• Permissions limit actions such as editing, copying, printing, or form filling. Choose permissions when recipients need limited document access.
• Redaction removes selected visible content when applied. Redaction when sensitive visible content must be removed.
• Sanitization removes hidden data, scripts, attachments, metadata, and other embedded information. Sanitize PDF documents when hidden or embedded information presents a risk.

Xodo PDF Studio runs the batch process locally in the desktop application without an upload step. Note that local processing does not, by itself, establish regulatory compliance, confidentiality, or a complete document security policy.

Frequently asked questions

1. Can I batch flatten PDF forms without Adobe Acrobat?

Yes. Xodo PDF Studio provides a dedicated batch command for flattening form fields across multiple PDFs on Windows, macOS, and Linux.

2. Does flattening delete completed form values?

No, it doesn't. Flattening paints form fields and their values into the page content. It renders calculated fields, buttons, signatures, and usual form field values static and uneditable.

3. Can users still copy or edit content in a flattened PDF?

Yes, in some cases. Flattening makes form fields non-interactive, but it does not automatically block copying or changes to other content. Apply PDF permissions when additional restrictions are needed.

4. Should I export form data before batch flattening PDF forms?

Yes. Export the data first if you may need it for reporting, analysis, or reuse. Xodo PDF Studio can export form data in formats such as FDF, XFDF, CSV, XML, and text.

5. Should I flatten PDF forms before or after adding digital signatures?

When your signing policy allows it, flatten the completed fields before applying the final signature. Changes made after signing can affect digital signature validation, so test the sequence and preserve signed originals.

6. Does batch flattening combine multiple PDF forms into one file?

No. Batch flattening creates separate processed files. Review the outputs first, then use the separate batch merge tool if you need one PDF package.

Finalize your PDF forms with an offline batch workflow

Batch flattening gives teams a consistent way to finalize multiple completed forms without opening and processing each PDF separately.

A controlled workflow with Xodo PDF Studio can help keep consistent naming, destination settings, and makes quality checks easier across a large file set. Your files can remain on your desktop workflow whether you're on Windows, macOS or Linux.

Download Xodo PDF Studio and streamline how you flatten PDF forms.