Desktop Products:

Process Automation:

Software Development:

 
PDF to Word Converter Customers
 

PDF/A-1 Compliance Issues

For each PDF/A-1 validation issue we try to explain what it means and, if possible how to resolve it. For a more technical explanation of the issue we quote the related section of the ISO 19005-1 PDF/A Specification.

6.1
File Structure - General
6.1.2
File Header
6.1.3
File Trailer
6.1.4
Cross Reference Table
6.1.6
String Objects
6.1.7
Stream Objects
6.1.8
Indirect Objects
6.1.10
Filters
6.1.11
Embedded Files
6.1.12
Implementation Limits
6.1.13
Optional Content
6.2.2
Output Intent
6.2.3
Color Spaces - General
6.2.3.3
Uncalibrated Color Spaces
6.2.3.4
Separation and DeviceN Color Spaces
6.2.4
Images
6.2.5
Form XObjects
6.2.6
Reference XObjects
6.2.7
PostScript XObjects
6.2.8
Extended Graphics State
6.2.9
Rendering Intents
6.2.10
Content Streams
6.3.2
Font Types
6.3.3.1
General Font Issues
6.3.3.2
CIDFonts
6.3.3.3
CMaps
6.3.4
Embedded Font Programs
6.3.5
Font Subsets
6.3.6
Font Metrics
6.3.7
Character Encodings
6.3.8
Unicode Character Maps
6.4
Transparency
6.5.2
Annotation Types
6.5.3
Annotation Dictionaries
6.6.1
General Multimedia Content
6.6.2
Trigger Events
6.7
Metadata
6.7.2
Properties
6.7.3
Document Information Dictionary
6.7.5
XMP Header
6.7.8
Extension Schemas
6.7.9
Validation
6.7.11
Version and Conformance Level Identification
6.8.2.2
Mark information dictionary
6.8.3.3
Structure hierarchy
6.8.3.4
Structure types
6.9
Interactive Forms
TN0001
TechNote : Namespaces
TN0003
TechNote - Metadata
TN0008
Predefined XMP Properties
TN0008-2.2
XMP Basic Schema
TN0009
XMP Extension Schemas
TN0009-3.3
Unqualified RDF Attributes

Compliance Issue: Form XObjects

What does this mean?

The document specifies Open Prepress Interface (OPI) parameters.

For example: a PDF file that displays with a low resolution image but when printed prints using a high resolution image.

How can I fix it?

Do not use PostScript when creating your PDF documents.

If you are working with a legacy document, simply open your PDF file in Solid PDF Tools and then File | Save As PDF/A. This will remove prohibited PostScript parameters in your PDF/A file.

6.2.5 - ISO 19005-1 PDF/A Specification:

A form XObject dictionary shall not contain any of the following:

-- the OPI key;

-- the Subtype2 key with a value of PS;

-- the PS key.

NOTE: In earlier versions of PDF the Subtype2 key with a value of PS and the PS key were used to define arbitrary executable PostScript code streams, which have the potential to interfere with reliable and predictable rendering.

 


We use cookies on this site to enhance your user experience. By continuing to use this website you are giving consent to set cookies. Please see our privacy policy for more details.
©2000-2024 Solid Documents Limited - All Rights Reserved