When a folder contains multiple image formats such as AVIF, BMP, WEBP, JPEG, HEIC, and GIF simultaneously, opening each one and re-saving as PNG is time-consuming and prone to omissions. This article uses HeSoft Doc Batch Tool as an example to demonstrate how to use image tools in office software to batch convert images with different extensions to a unified PNG format, and explains the workflow, applicable scenarios, and precautions with before-and-after illustrations, helping users quickly standardize image formats.
In daily office work, design delivery, material archiving, and system upload processes, a very practical problem often arises: images come from different sources and in various formats. Some might be HEIC from a mobile phone album; some could be WEBP or AVIF from a web download; others might be BMP exported from an old system; and there are also common JPEG, JPG, GIF, and PNG files mixed in the same folder. If the target platform only accepts PNG, or if the team wants to unify material formats, manually converting them one by one is not only inefficient but also prone to issues like missed conversions, naming confusion, and duplicate saves.
The solution introduced in this article uses the "Convert Images to PNG" feature in the office software HeSoft Doc Batch Tool to import multiple image files of different formats at once and then complete the batch conversion by following a wizard. Its core value is not single-image editing, but rather batch processing files for office scenarios: centralizing the work of repeated clicking, repeated "save as," and repeated extension checking to reduce manual operation time.
Applicable Scenarios: When Do You Need Batch Image to PNG Conversion
Batch converting various image formats to PNG is suitable for many common office scenarios. The first category is unified material management. For example, when marketing, operations, administrative, and HR departments organize event photos, poster materials, and product screenshots, they often collect images from different channels, and inconsistent formats can affect subsequent archiving and sharing. Uniformly converting AVIF, BMP, WEBP, JPEG, HEIC, GIF, etc., to PNG can make the folder structure clearer.
The second category is system upload requirements. Some backends, databases, reimbursement systems, and content management platforms have restrictions on image formats and may only allow uploading PNG or JPG. When a batch of materials needs to be converted to PNG, using a batch image format conversion tool is more efficient than opening image editing software one by one.
The third category is cross-device compatibility. HEIC is common on some phones and systems but may not preview properly on some office computers, older software, or web systems; although WEBP and AVIF have high compression efficiency, not all business systems are compatible. After uniformly converting to PNG, viewing, inserting into documents, creating presentations, and uploading to systems will be more stable.
The fourth category is team delivery standards. When multiple people, such as designers, copywriters, operators, and customer service staff, collaborate, if it's agreed to deliver PNG files, the format needs to be unified before delivery. Using HeSoft Doc Batch Tool , you can centrally convert multiple image formats within a folder, reducing the cost of organizing before delivery.
Effect Preview: Mixed Formats Before Processing, Unified as PNG After
From the before-processing effect image, you can see that the same folder contains 7 image files with inconsistent extensions, including 1.avif, 2.bmp, 3.webp, 4.png, 5.jpeg, 6.heic, 7.gif. These files differ in source, compression method, and compatibility. Converting them individually would require opening and saving each one separately, which is very tedious.
After batch conversion, the processing results show that all files have become PNG format, with filenames sequentially named 1.png, 2.png, 3.png, 4.png, 5.png, 6.png, 7.png. That is, the original formats like AVIF, BMP, WEBP, JPEG, HEIC, and GIF have all been uniformly converted to PNG, facilitating subsequent unified management, uploading, or insertion into office documents like Word, PPT, Excel, and PDF.
This before-and-after comparison also illustrates that the focus of batch image-to-PNG conversion is not changing the image content, but unifying image files from different sources into a target format. For users who need to organize dozens or hundreds of images, this kind of batch processing function can significantly reduce repetitive work.
Operation Steps: Using HeSoft Doc Batch Tool for Batch PNG Conversion
Step 1: Enter Image Tools and Select "Convert Images to PNG"
After opening HeSoft Doc Batch Tool , you can see several office categories on the left side, including Home, Task Flow, All Tools, File Name, Folder Name, File Organize, Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Text Tools, Image Tools, Video Tools, Audio Tools, etc. Since the objects being processed this time are image files, you need to enter the Image Tools category on the left.
On the Image Tools page, the software displays different image processing functions in card form, such as Add Watermark to Image, Image Effect Enhancement, Split Image into Multiple Small Images, Convert Image to PNG, Convert Image to BMP, Convert Image to GIF, Convert Image to JPEG, Convert Image to JPG, Convert Image to PSD, Convert Image to SVG, Convert Image to TIF, Convert Image to TIFF, Convert Image to WEBP, Convert Image to TGA, Convert Image to AVIF, etc. The function to click here is "Convert Image to PNG", whose description is "Batch convert image files to PNG format."
The purpose of this step is to clarify the target format for this batch processing task. After selecting "Convert Image to PNG," the software will enter the corresponding processing page, and all subsequently imported images will be converted to PNG according to this task.
Step 2: Add Image Files to Convert
After entering the "Convert Image to PNG" page, you can see the function title at the top. On the right side, buttons like Add File, Import File from Folder, Clear, and More are provided. The middle of the page is the list of files pending processing, and there is a Next button at the bottom.
If you only need to process a few specific images, click "Add File" to select the images to convert from your computer. If all images in an entire folder need to be uniformly converted to PNG, use "Import File from Folder," which is more suitable for batch organizing materials. The screenshot shows 7 imported records, with the list displaying information like sequence number, name, path, extension, creation time, modification time, and operations.
From the list, you can see that the pending files include extensions like avif, bmp, webp, png, jpeg, heic, gif. The software lists these files centrally, allowing users to check the quantity and file paths before starting the conversion to confirm whether the correct images have been imported.
Step 3: Verify the File List, Use Delete, Filter, or Sort If Necessary
Verification before batch processing is very important. In the screenshot, each row has a delete operation icon on the right. If you find a file does not need to be converted, you can remove it from the list. You can also see "Filter" and "Sort" buttons at the upper right of the page, suitable for assisting when viewing records with a large number of files. For instance, when there are many images in a folder, you can first check the extensions through the list to confirm if it contains files like AVIF, WEBP, HEIC, BMP, JPEG, or GIF that need conversion.
The expected result of this step is to ensure the pending processing list is accurate. For office scenarios, batch processing is highly efficient, but it also means one operation affects multiple files. Therefore, before clicking Next, it's recommended to confirm that the file count, paths, and extensions meet expectations.
Step 4: Click "Next" and Set the Save Location According to the Wizard
After confirming the file list is correct, click the Next button at the bottom of the page. From the process prompt at the top of the interface, the entire task is divided into three stages: Select records to process, Set save location, Start processing. The current screenshot is paused at the first step; clicking Next will lead to the save location setting stage.
The purpose of setting the save location is to decide where the converted PNG files will be saved. It is recommended to choose a clear output directory during batch conversion, such as creating a new "PNG Conversion Results" folder, to distinguish it from the original images. This facilitates comparing the before and after effects and avoids mistakenly thinking the original images have been replaced.
Step 5: Start Processing and Check the Conversion Results
After completing the save location settings, continue following the page wizard to enter "Start Processing." Once processing is complete, open the output folder to check the results. The post-processing effect image in this article shows that the 7 files of originally different formats have been unified into 1.png through 7.png. These PNG files can now be used for data uploads, document illustrations, PPT creation, material archiving, or delivery to other colleagues.
If the number of processed images is large, it's advisable to spot-check a few files from different sources, such as the original HEIC, WEBP, AVIF, and GIF, to confirm that the converted PNGs preview normally and their dimensions meet business requirements, before putting them into official use.
Frequently Asked Questions and Considerations
1. Do files that are already PNG need to be processed?
In the screenshot, the 4th file itself is 4.png. After setting the task to "Convert Image to PNG," it will still appear in the pending list. For files already in PNG format, you can typically keep them in the list for a unified output, or remove them before processing depending on the need. The actual choice depends on whether you require a complete set of PNG files in the output directory.
2. Will batch conversion change the original files?
From the interface flow, you can see the software will prompt the user to set a save location. For office safety, it's recommended to separate the output directory from the original directory, which helps preserve the original files and facilitates traceability. Especially when handling client data, project materials, or archived files, it's not advisable to directly overwrite the original files.
3. What is the significance of converting HEIC, WEBP, and AVIF to PNG?
HEIC, WEBP, and AVIF are common image formats but have inconsistent compatibility. After converting to PNG, they are more easily recognized in most office software, web systems, and file preview environments. For users who need to insert into Word documents, create PowerPoint presentations, organize Excel attachments, or upload to backend systems, unifying them as PNG can reduce compatibility issues.
4. What should be noted when converting dynamic GIF to PNG?
A GIF can be static or animated. PNG is a static image format. If you are processing an animated image, it is recommended to first test with a small sample to see if the conversion result meets your needs. If the business goal is just to retain a previewable image, converting to PNG is generally more convenient; if you need to preserve the animation effect, you should handle it with caution.
5. How to reduce the probability of errors when there are many files?
It is recommended to first organize the original images by folder, then use "Import File from Folder" for batch import; check the list count and extensions before processing; output to a separate folder; and spot-check images from different source formats after processing. This approach leverages batch processing to improve efficiency while reducing the risk of mishandling.
Summary: Replacing Repeated "Save As" with Batch Processing
Batch converting images like AVIF, BMP, WEBP, HEIC, GIF, and JPEG to PNG is essentially standardizing image formats. When processing manually, each image requires opening, saving as, choosing a format, and confirming the filename, consuming a significant amount of time for dozens of images. Using office software like HeSoft Doc Batch Tool , you can utilize the "Convert Image to PNG" feature to import various formats of images at once, set unified parameters, and export them centrally.
If you are organizing materials, preparing to upload to a system, creating documents, or standardizing team deliverables, it is recommended to first place the original images in a folder, then follow the steps in this article to enter Image Tools, select "Convert Image to PNG," import the files, and complete the batch processing. This will allow you to quickly obtain uniform PNG files, reduce repetitive labor, and make image organizing tasks more stable and efficient.