DOCX to PDF/A Converter • Online & Free • MConverter

How to convert DOCX to PDF/A?

You can convert DOCX to PDF/A with MConverter in three easy steps:

Choose DOCX files from your device or cloud storage
At the top of this page, drag and drop your DOCX's.

Alternatively, click on the Browse box to select files with your device's file picker, or copy and paste a DOCX file by pressing Ctrl+V (or ⌘+V on Mac).

MConverter can easily import DOCX's from Google Drive, OneDrive, and Dropbox.

Converting a folder with DOCX files to PDF/A is also supported: simply paste, drag and drop it, or use the ADD FOLDER button.
Click or tap on PDF/A from the list of target formats
You could also use the search box at the top right to quickly find the format you need, whether it's PDF/A or something else.
Get your PDF/A files after MConverter has finished processing them
Click on DOWNLOAD ALL to save your PDF/As to your default downloads folder, or select SAVE TO to choose another location.

You can also configure automatic file downloads during the conversion process or in the settings menu. When enabled, each PDF/A file is downloaded as soon as its conversion is complete, without waiting for the others to finish.

If supported by your device, you'll see a Share icon, allowing you to directly send converted files to other apps.

About the formats

File extension	.docx
Category	Document/Office file formats
Developed by	Microsoft
Mime type	application/vnd.openxmlformats-officedocument.wordprocessingml.document

Format description

Word document generated by newer versions of Microsoft Office Word.

File extension	.pdfa.pdf
Category	Document/Office file formats
Developed by	ISO (International Organization for Standardization)
Mime type	application/pdf

Format description

PDF/A (from PDF/Archive) is an ISO-standardized version of the Portable Document Format (PDF) specialized for digital preservation of electronic documents. It ensures that the document will look the same in the future as it does now by embedding all necessary components, such as fonts, color profiles, and images, within the file. Unlike regular PDFs, PDF/A prohibits features that might hinder long-term archiving, such as encryption and external content references, ensuring that the document remains self-contained and fully accessible over time. This standard is widely used in legal, governmental, and archival settings where document longevity and integrity are crucial.

MConverter creates files in version PDF/A-2b.

Common questions about converting DOCX to PDF/A

Which version of PDF/A does MConverter output?

PDF/A files produced by MConverter conform to PDF/A-2b, also known as standard ISO 19005-2.

Can I convert DOCX to PDF/A in bulk?

Yes, MConverter supports batch converting of multiple DOCX's to PDF/As simultaneously. You can even drag and drop folders containing DOCX's to convert to PDF/A.
Pasting DOCX files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert a DOCX file to PDF/A, if its size is 2 GB?

Yes, with MConverter Pro you can convert big DOCX's, up to 2 gigabytes each.
The free version lets you convert files up to 100 MB. If you need to convert DOCX files over 100 megabytes, try MConverter Pro. If your files aren’t over 1 GB, then you can use MConverter Plus instead, as it’s cheaper.

Is converting DOCX's to PDF/A safe with MConverter?

Yes, we encrypt your connection using industry standards. Plus, your DOCX files are only accessible by you. 4 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your DOCX's and other converted files immediately after finishing the conversion by clicking the bin icon.
Join thousands who have trusted us to convert over 16,238,357 files so far.

How long does it take to convert DOCX to PDF/A?

For most documents, the wait may be a minute or so. However, MConverter also supports converting larger documents, meaning that it could take a while (up to over an hour, for example).