PDF4me

Comprehensive PDF and document processing: generate barcodes, convert files, extract data, manipulate images, and automate workflows with the PDF4ME API

Actions80

Overview

This node operation "Remove EXIF Tags From Image" is designed to process image files by stripping out all EXIF metadata tags. EXIF tags often contain information such as camera settings, geolocation, date/time, and other details embedded in image files. Removing these tags can be important for privacy reasons, reducing file size slightly, or preparing images for environments where metadata should not be preserved.

Common scenarios where this node is beneficial include:

Preparing images for public sharing without revealing location or device information.
Complying with privacy regulations by removing personal metadata.
Cleaning images before archival or further processing to ensure uniformity.
Reducing potential metadata-based tracking or fingerprinting.

Practical example:

A user receives photos from various sources and wants to upload them to a website without exposing the original camera data or location. This node can remove all EXIF tags automatically before upload.

Properties

Name	Meaning
Input Data Type	Choose how to provide the image file: - Binary Data (image from previous node) - Base64 String (base64 encoded image content) - URL (link to image file)
Input Binary Field	Name of the binary property containing the image file (used if Input Data Type is Binary Data).
Base64 Image Content	Base64 encoded string of the image content (used if Input Data Type is Base64 String).
Image URL	URL pointing to the image file (used if Input Data Type is URL).
Output File Name	Desired filename for the output image after EXIF tags are removed.
Image Type	Type/format of the image: JPG or PNG.
Async	Enable asynchronous processing (true/false).
Binary Data Output Name	Custom name for the binary data field in the node's output.

Output

The node outputs the cleaned image file with all EXIF tags removed. The output includes:

A JSON object representing the processed item.
A binary data field containing the cleaned image file data, named according to the "Binary Data Output Name" property (default is "data").
The output file will have the specified "Output File Name" and maintain the chosen image type (JPG or PNG).

If the input was provided as binary data, base64 string, or URL, the output will consistently be a binary image file without EXIF metadata.

Dependencies

The node requires access to the image data either via binary input, base64 string, or URL.
No explicit external API keys or services are indicated in the source code snippet.
The node likely depends on internal libraries or utilities to handle image processing and EXIF tag removal.
Asynchronous processing can be enabled, which may require proper environment support for async operations.

Troubleshooting

Common issues:
- Providing an invalid or inaccessible URL may cause failures in fetching the image.
- Incorrect binary property name when using binary data input can lead to missing or invalid image data.
- Unsupported image formats other than JPG or PNG might not be processed correctly.
- Large image files could cause timeouts or memory issues depending on environment limits.
Error messages:
- Errors related to missing input data or invalid format typically indicate misconfiguration of input properties.
- Network errors when using URL input suggest connectivity or permission problems.
- If the node throws errors about unsupported image types, verify that only JPG or PNG are used.
Resolutions:
- Double-check the input data type and corresponding fields.
- Ensure URLs are reachable and return valid image content.
- Use supported image formats only.
- Enable "Continue On Fail" option in n8n workflow to handle individual item errors gracefully.

Links and References

This summary is based solely on static analysis of the provided source code and property definitions.