Submission Checklist for Supplemental Digital
Content
Supplemental Digital Content Basics ............................................................................ 2
Supplemental Digital Content Checklist ...................................................................... 2
Unacceptable file types .................................................................................................. 3
How to check submitted files ........................................................................................ 4
Step 1. Determine total size of all supplemental digital content. ................ 4
Step 2. Check file name for acceptable file extension. .................................. 4
Step 3. Check videos for acceptable length/duration ..................................... 4
Step 4. Check videos for acceptable image size ............................................... 4
Step 5. View or listen to the file. ........................................................................ 4
Step 6. Check for call-outs and legend of supplemental digital content ..... 4
Step 7. Check Patient anonymity, copyright release form, and permissions.
..................................................................................................................................... 5
Reference Guide:
Author requirements for submission: http://links.lww.com/A142
Knowledge Base for digital content: http://links.lww.com/A194
Help viewing videos: http://links.lww.com/A147
Checklist for Supplemental Digital Content
2
Supplemental Digital Content Basics
Authors may submit supplemental digital content to enhance their article’s
text to be considered for online posting. When digital content (including
figures, graphics, illustrations, audio, or video) is submitted to a journal, it
must be quality checked quickly using the criteria outlined in this document. If
a file does not meet these guidelines, the file should be returned to the author
for resubmission. If the author is unable to provide a suitable file, then the
editorial office may determine if the file will be presented online. It is the
author’s responsibility to provide materials that meet these guidelines. These
guidelines ensure that the digital content can be easily downloaded and viewed
by the reader.
Standard requirements for digital content: http://links.lww.com/A142
 Help with digital content: http://links.lww.com/A194
Please use the following checklist to verify the quality of each file.
Instructions are included below to help you analyze the files.
Supplemental Digital Content Checklist
Criteria
Size of each online-only file
File extension
(no restrictions for text
documents, graphs, or tables)
File length
(videos only)
Image size
(videos only)
Requirements
 10 MB per file or fewer
(suggested)
Figures, graphics, or illustrations:
 .tif, .eps, .ppt, .jpg, .pdf, .gif
Portable Audio (under 10 MBs):
 .mp3, .wma
Portable Video (under 10 MBs):
 .wmv, .mov, .qt, .mpg, .mpeg,
.mp4
Audio / Video over 10 MB:
 .mp3 (audio)
 .wmv (video)
Portable video:
 5 minutes or fewer (suggested)
High resolution video:
 No limitations
Portable video:
 320 X 240 pixel (suggested)
High resolution video over 10 MB:
©2007 Wolters Kluwer Health
This document is intended for sole use by Wolters Kluwer Health and its customers and may be distributed at
the sole discretion of Wolters Kluwer Health. Any dissemination or other transmission is explicitly prohibited.
Checklist for Supplemental Digital Content
Text call-outs
Legend of supplemental digital
content
Patient anonymity
Copyright release form
Permissions
Submission to LWW
3
 320 X 240 pixels, 640 X 480
pixels, 720 X 480 pixels (NTSC)
 Each file is referenced
consecutively in text
 Video citations include length
and size
 Legend for each file
 Each legend is numbered
 Description of each file
 Patients’ eyes and names are
not revealed in figures or videos
(or written consent has been
provided)
 Copyright release form for
manuscript has been signed by
all authors
 Written permission received for
material borrowed from another
copyrighted source
 Submit final files directly to
your production editor along
with the other accepted
manuscript files
Unacceptable file types
We do not accept the following file types because of their potential for
playback errors:
▪ Audio / Video Interchange (.avi)
▪ DVD / CD disc rips (.vob, .ifo, .bup, .iso, .img)
o This includes any file that is attained by copying files from a
DVD movie disc or files obtained through a DVD disc or CD disc
image rip.
▪ Uncompressed audio (.wav)
©2007 Wolters Kluwer Health
This document is intended for sole use by Wolters Kluwer Health and its customers and may be distributed at
the sole discretion of Wolters Kluwer Health. Any dissemination or other transmission is explicitly prohibited.
Checklist for Supplemental Digital Content
4
How to check submitted files
Step 1. Determine total size of all supplemental digital content.
▪
▪
Hover you cursor over the file to view the size.
Or, right click on the file and view the “Properties.”
Step 2. Check file name for acceptable file extension.
Step 3. Check videos for acceptable length/duration
▪
▪
▪
Right click on the file and choose “Properties.”
Click the tab labeled “Summary.”
The length of the video is shown as the “Duration.”
Step 4. Check videos for acceptable image size
▪
▪
▪
Right click on the file and choose “Properties.”
Click the tab labeled “Summary.”
The image size is shown as the “Width” and “Height.”
Step 5. View or listen to the file.
▪
▪
If all of the above criteria are met, view or listen to the file to check for
audio and visual quality. Ensure that the human eye and ear finds the
content “easy to see” and “easy to hear.”
If you have trouble viewing a video file, please consult the following
link: http://links.lww.com/A147
Step 6. Check for call-outs and legend of supplemental digital
content
▪
If all of the above-criteria for supplemental digital content submission
have been met, make sure that within the text of the article the author
has completed the following:
1) Placed consecutive citations for all supplemental digital content in
the text. Citations should include the type of material submitted,
should be clearly labeled as “Supplemental Digital Content,” should
include the sequential legend number, and should provide a brief
description of the supplemental content. Audio and video citations
should also include the length and size of the file.
Examples:
©2007 Wolters Kluwer Health
This document is intended for sole use by Wolters Kluwer Health and its customers and may be distributed at
the sole discretion of Wolters Kluwer Health. Any dissemination or other transmission is explicitly prohibited.
Checklist for Supplemental Digital Content
▪
▪
5
(see Video, Supplemental Digital Content 1, which demonstrates
the degrees of flexibility in the elbow, 5 minutes, 10MB)
(see Table, Supplemental Digital Content 2, which illustrates the
rise in cost of knee replacement surgery)
2) Provided a legend of supplemental digital content at the end of the
text. Legends should be listed in the order in which the material is
cited in the text. The legends must be numbered to match the
citations from the text. Authors must include a title and a brief
summary of the content. For audio and video files, also include the
author name, videographer, participants, length (minutes), and size
(MB). It is left to the journal office’s discretion to determine if this
information is to be included in the published citation.
Examples:
▪ Supplemental Digital Content 1. Video that demonstrates the
degrees of flexibility in the elbow.
▪ Author: John Smith
▪ Videographer: Jerry Denholm
▪ Participants: Wendy Steinburger and Jim Reynolds
▪ Length: 5 minutes
▪ Size: 10MB
▪ Supplemental Digital Content 2. Table that illustrates the rise in
cost of knee replacement surgery.
Step 7. Check Patient anonymity, copyright release form, and
permissions.
▪
▪
▪
Author must blind the identities of patients or provide written consent
from patients.
All author signatures must be received on copyright release form.
Author must submit written permission from copyright owner of any
borrowed materials.
©2007 Wolters Kluwer Health
This document is intended for sole use by Wolters Kluwer Health and its customers and may be distributed at
the sole discretion of Wolters Kluwer Health. Any dissemination or other transmission is explicitly prohibited.