Append

The Append feature adds a prefix and/or suffix to the existing filename without changing the original name. This is a quick way to tag, categorize, or annotate files in bulk while preserving their current names.

How It Works

Select one or more files in Windows Explorer.
Right-click and choose FilerFrog → Rename → Append.
Enter a prefix (text added before the filename), a suffix (text added after the filename but before the extension), or both.
Click OK to apply the rename.

Example: You have a file named Pic435.jpg. Set the prefix to Paris- and the suffix to (Excellent Zoom). The file is renamed to Paris-Pic435 (Excellent Zoom).jpg.

Options

Prefix — Text inserted at the beginning of the filename.
Suffix — Text inserted at the end of the filename, before the file extension.

You can use either one or both at the same time. The original filename and extension are always preserved.

Tip: Append is ideal when you want to keep the original filename intact but add context. For example, add a date prefix like 2026-04- or a category suffix like (Draft).

Scenario

You have a set of project files that need to be marked as final before sharing. Select all the files, set the suffix to - FINAL, and every file gets the label appended: Budget - FINAL.xlsx, Timeline - FINAL.xlsx, Scope - FINAL.docx.

Date and Time Tokens

Use special tokens in your prefix or suffix that automatically expand to the current date and time:

{date} → current date (e.g., 2026-04-06)
{time} → current time (e.g., 14-30-00)
{datetime} → date and time combined (e.g., 2026-04-06_14-30-00)
{year}, {month}, {day} → individual components

Example: Prefix {date}_ turns "report.pdf" into "2026-04-06_report.pdf"

File Metadata Tokens

For image files, you can include the image dimensions in the filename:

{width} → image width in pixels
{height} → image height in pixels
{dimensions} → width x height (e.g., 1920x1080)

Example: Suffix _{dimensions} turns "photo.jpg" into "photo_1920x1080.jpg"

Tip: These tokens also work in Auto Numbering with Append and Alphabetize with Append.