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PDF Portfolio Conversion+
Convert PDF Portfolio files to Searchable PDF for Litigation Review

PDF Portfolio Conversion+ is a litigation support service to convert PDF Portfolio and Package files into usable standard searchable PDF files in connection with e-Discovery requests and related legal analysis.  The resulting PDF files are text-searchable and can be Bates numbered at the page level.

Below you can find details on the PDF Portfolio Conversion+ service, including why it is needed, the key benefits and features, additional information and price quotes for the service, getting started, and information about our industry partner program.  If you have any questions, feel free to call (800-401-7809 x22) or email us at   

Why PDF Portfolio Files are Often Unsuitability for e-Discovery

Adobe, the creator of the popular Acrobat program and the PDF format, has added many useful features for lawyers in the latest versions Acrobat 8 and Acrobat 9, including Bates stamping and redaction.  These new versions also introduce a new container PDF file, called 'PDF Package' in Acrobat 8 and renamed to 'PDF Portfolio' in Acrobat 9.  This new container file format was originally developed by Adobe as a design tool, not as a legal review tool.  While helpful in many situations, this new container file format can cause problems and headaches when used in e-Discovery.

Potential Problems with Acrobat Portfolio Files in Litigation

PDF Portfolio or Package files allow the embedding of different file types into a PDF file.  However, the embedded files are not actually converted to PDF, but instead remain in their original format within the PDF container, much like how a ZIP archive files embeds different file types into a ZIP file.  Acrobat also includes a utility to easily convert Outlook PST email files to PDF packages (version 8) or PDF Portfolios (version 9).  In this case, each email body is converted into a PDF file and the attachments to the email are not converted to PDF, but instead are embedded into the PDF portfolio or container file in their original file format.  To view the embedded files the user must click on each attachment and open it using the application (not Acrobat) that is associated on the users computer to read the the attachment. 

What is the problem with this approach in litigation e-Discovery?   Several actually.  A defensible litigation e-Discovery process should gather as much potentially relevant information as practicable and make it available to reviewing attorneys in a format that is searchable, easy usable and trackable.  Email in Outlook PST format or as MSG files that are converted into PDF Portfolio or PDF Packages can have a number of problems in this regard.

Limited Search Capability.  Only a limited number of attachments can be searched in a PDF Portfolio file: searchable PDF files, Microsoft Office documents (such as .doc, .xls, and .ppt), AutoCAD drawing file formats (.dwg and .dwf), HTML files, and Rich Text Format (.rtf) files., and then only if each user has Acrobat 9 Standard or Professional installed (not the free version of Acrobat Reader).  Even if the user has the paid versions for Acrobat Standard or Professional, the limited search function will miss the numerous other file types that are often included as email attachments.  Also, the search will miss the content of of fax attachments, scanned documents, and password protected files.

No OCR of Attachments.  Optical character recognition (OCR) deserves special mention with regard to email file attachments.  A surprising number of email attachments in Outlook PST and MSG files in email collections are image-based and not searchable without first applying OCR,.  This important step is not automatically done when PDF Portfolio files are created.  Attachments from email collections typically include scanned documents in the form of PDFs, JPEGs, TIFFs and other image files.  With the proliferation of inexpensive desktop scanners and the always desired but always out-of-reach 'paperless office', many electronic files include text images but are not text readable without OCR.  Faxes converted to email attachments are another source of image-based attachments.  Many products and services exist that allow the user to receive incoming faxes as email attachments.  These fax attachments are usually TIFF files and not text searchable without OCR.   

Increased Review Time Needed.  Attorney inefficiency is another potential problem with Portfolio PDF files.   The largest cost by far in a discovery production is attorney review time, usually dwarfing processing and other e-Discovery costs.  In a PDF Portfolio file based on email conversion, the reviewing attorney must open each attachment to look at it in a program that can view the attachment.  This requires that the applicable native software or a viewing program be installed on each attorney computer.  While this is possible, it pushes issues of dealing with unusual problem file attachments out to the reviewing attorneys instead of handling before review in a more cost effective manner.  Requiring reviewing attorneys and other reviewers to deal with problems with file attachments in a non-PDF format can increase review costs, lead to frustration and inconsistency, and decrease review quality.

Password Protected Files Not Identified.  Password protected attachments can create review headaches in several ways.  Email files may include file attachments that are password protected to increase security in transmission on the internet.  A good e-Discovery process will identify and segregate password protected files for consistent treatment and evaluation.  If these files are included in a PDF Portfolio file, however, the reviewer needs to deal with these one at a time as they are encountered. 

Files with Viruses Not Segregated.  Email as part of a litigation review can easily include attachments with viruses, trojan and other malware programs included as file attachments.  The Acrobat Portfolio process converts Outlook email into an embedded PDF includes all file attachments, including those with viruses and similar dangerous attachments.  If not handled in pre-review, then the reviewer potentially infects his or her computer by opening an infected attachment when opening it in an Acrobat Portfolio file.  Acrobat does provide a virus warning before opening a file attachments, but does not scan or quarantine viruses or other malware in file attachments.

Inability to Bates Stamp at the Page Level.  How best to handle Bates stamping with electronic files is a subject of debate in the legal community.  One advantage of a regular flattened-PDF files (not a PDF Portfolio file) is that page-level Bates stamping can be used.  Many attorneys prefer this over a more non-specific file-level Bates stamp that must be used for non-PDF or TIFF electronic files.  Page-level Bates stamping allows the attorney in a deposition to zero-in on the exact page of a document and tie that into the deponents testimony.  Without page-level Bates stamping, reference must be made to a file level identifier and some other internal document indicator used to specifically identify the part of the document being referenced.  PDF Portfolio files created from Outlook email allow page level Bates stamping only of the body of the email, but not at the page level for attachments. 

Key Benefits & Features of PDF Portfolio Conversion+ Service

The Lexbe's PDF Portfolio Conversion+ service converts email stored as PDF portfolio or package files into flattened separate searchable email messages in PDF format.   Features include:

  • Each email and its attachments are separated and saved as an individual PDF file.
  • File attachments are converted to searchable PDF using OCR (hundreds of  types including those commonly seen in litigation).
  • Redlined revisions in Word documents included in PDF.
  • Attachments that cannot be converted (corrupt files, password-protected files, media files, etc.) are segregated and identified.
  • ZIP compressed file attachments expanded and converted to PDF when possible.
  • Each email file is Bates stamped at the page level, including its attachments.
  • All files are uniquely identified for evidence authentication purposes using the MD-5 hash (a digital fingerprint).
  • Each job includes a Chain of Custody spreadsheet that lists each file, and includes email metadata (date, time, sender, receiver, subject), applicable MD-5 hash, file name, Bates number and identification of files that could not be converted.

Return of Converted PDF Files
Converted PDF files can be returned by portable USB drive, by secure FTP transfer, or through free upload to our web-based Litigation Document Management application.  This last option includes the ability to organize, search, review, and conduct productions of the converted emails for free for 30 days as part of a legal matter.  We also offer the option of paper print-outs of the converted PDFs (blowback) for an additional charge. 

Additional Information and Price Quotes 

Additional information and a price quote is available here, or feel free to call (800-401-7809 x22) or email us at  . Pricing starts at pennies per page and per GB discount pricing is available on larger jobs.

Getting Started

To get started you send us your files on a USB thumb drive, portable drive, CDs or DVDs by express courier, or upload the files directly to our secure FTP server for quicker service.  

Partner Program

If you are a litigation support provider, litigation or IT consultant, or a court reporter and would like to offer this service to clients, please contact us about our partner programs at (800-401-7809 x22) or email us at 

All services described on this and related pages are subject to Lexbe's Digitization Services Agreement.