Converting PDF to PDF/A-1b
PDF Studio provides the ability to convert files to the PDF/A-1b format.
PDF/A-1b is a strict subset of the ISO PDF specification used to create
archival versions of documents with the intent that they will always render
exactly the same as when they were saved. PDF/A-1b is growing in popularity
as international governments, libraries, newspapers, and legal systems
recognize the need for digital documents to be preserved in a consistent
format for a long period of time.
When converting to PDF Studio will attempt to convert the PDF to the
PDF/A-1b format by making the following changes to the document
- Graphics will be converted to a device-independent format. If any
device dependent color spaces are used, they will be defined by embedding
a color profile for these color spaces.
- Fonts will be embedded.
- Transparency may be removed.
- Unsupported comments (e.g., video, audio, 3D) may be removed.
- JavaScript (mostly used in Forms) will be removed.
- Embedded files and external hyperlinks may be removed.
- Form fields will be flattened
How to Convert a PDF to PDF/A-1b
- Open the PDF Document you wish to convert
- Go to the Convert Tab > Convert
To > PDF/A-1b on the toolbar
- A dialog will be displayed showing the changes that will
be made to the document
- Choose a file name and location to save the document
- Click Save to convert the document to PDF/A-1b
PDF/A Conversion Results
PDF Studio will attempt to convert every file but due to the PDF/A-1b
requirements some files may not be able to be converted. If the conversion
fails a dialog will be displayed showing the reasons that the conversion
failed. A red symbol will be displayed next to
the items that are not PDF/A compliant and can not be fixed by PDF Studio
PDF/A conversion.
Note:
When the conversion is successful no
dialog will be displayed as the conversion process completed and saved
the new document correctly
Unsupported Features in PDF/A-1b Conversion:
Below is a list of features that may cause errors during the PDF/A-1b
conversion.
- The PDF document contains non-embedded, non standard system fonts.
Only the standard 14
PDF fonts can be embedded. Non standard system fonts will
not be embedded.
- Workaround: There is
no workaround for fixing this other then recreating the PDF document
using different fonts.
- The PDF document is secured / encrypted with passwords and permissions.
- Workaround: Users should
clear any security on a document before running PDF/A conversion.
- The PDF documents has user rights enabled.
- Workaround: Users should
clear user rights before running PDF/A conversion.
- The PDF document contains a digital signature. Converting to PDF/A
would invalidate any digital signature.
- Workaround: Users should
clear or remove digital signature fields before running PDF/A
conversion.
- The PDF document contains unsupported PDF commands or operators.
Often these documents can not render in PDF Studio or will have pages
that do not render properly.
- Workaround: Users may
be able delete the invalid pages.
Verify that Existing Document is PDF/A-1b Compliant
Viewing the Document or Document Properties
When opening a document that is PDF/A-1b compliant a blue notification
"This document is tagged as PDF/A-1b compliant" will be displayed
at the bottom of the PDF Studio window. You can also confirm the PDF/A-1b
compliance in the document properties dialog.
- Go to the File Tab> Properties
from the menu or using the shortcut keys Ctrl + D (⌘ + D on Mac).
- Click on the General Tab
- In the lower right corner of the general document properties there
will be a "PDF/A" label that will show "Yes" if
the document meets the PDF/A-1b compliance standards
Using Preflight Verification
You can also use the PDF/A-1b Preflight
Verification to verify that the document complies with the PDF/A-1b
standards
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