2345看图王 Image Editing and Format Conversion Guide
Beyond viewing, 2345看图王 can also watermark, crop, batch convert and compress, and do AI cutout. This page explains by scenario how to use these editing and conversion features and whether the original is overwritten.

Add a Text or Image Watermark to Photos
In 2345看图王 choose the Add Watermark feature, where you can enter a text watermark and set the font, size, opacity and position, and even apply it uniformly to many images at once, which is handy for preventing theft.
Batch Convert HEIC to Universal JPG
Yes. 2345看图王 already supports viewing HEIC directly, and can also use batch conversion to turn HEIC into universal JPG that then opens normally on any computer or website, which suits iPhone users importing photos to Windows.
Crop Off Unwanted Borders
Yes. After opening an image, choose Crop in the editing tools of 2345看图王, drag the selection box around the area to keep and confirm, with support for free ratio and common ratios.
Adjust Brightness and Contrast to Rescue Dark Photos
Yes, you can do basic color adjustment, as the editing screen of 2345看图王 lets you adjust brightness, contrast, saturation and other parameters, dragging the sliders for a live preview and saving when satisfied.
Batch Resize a Group of Images to the Same Size
Yes. 2345看图王 has built-in batch processing, so after choosing Batch Resize you import many images, set the target size by pixels or percentage, lock the ratio to prevent distortion, and output them all at once.
Batch Convert Hundreds of PNG Files to JPG
Yes. With the Batch Convert feature in 2345看图王, import a whole group of PNG images, set the target format to JPG, choose an output folder and convert in one click, handling even hundreds of files at once.
Convert WEBP to JPG So More Software Recognizes It
In 2345看图王 open a WEBP image and you can save a single one as JPG, or for many use batch conversion to import the whole group with JPG as the target and do it all at once, after which compatibility is good and they work everywhere.
Compress the File Size While Keeping It Sharp
There is some loss, but it is controllable: when compressing in 2345看图王 keep the quality at a higher setting (around 80%) and the size shrinks noticeably while the difference is almost invisible to the eye; for lossless results prefer formats such as PNG.
Batch Rename With Uniform Numbering
Yes, it is supported, as the batch rename in 2345看图王 can apply a uniform rule to a whole group of images, such as a prefix plus sequence number like Trip_001, Trip_002, changing them all at once, which saves a lot of effort organizing albums.
Merge Multiple Images and Export as PDF
Yes. 2345看图王 supports turning images into PDF, so multiple images can be merged into one PDF file for easy printing and sending; it can also read PDF/OFD, with 2345 PDF available for more processing.
Region Screenshot With Quick Annotation
Very convenient. 2345看图王 has a screenshot feature, and once started you select any region of the screen to capture, and can add arrows, text, mosaic and other annotations while capturing, then save or copy when done.
AI Cutout to Change Background and Make ID Photos
2345看图王 includes AI cutout that automatically detects a person or subject and removes the background, which is good enough for everyday ID photos and product images, though complex edge detail such as hair strands may need manual touch-up.
More questions answered
Will repeatedly editing and saving JPG in 2345看图王 make it blurrier each time?
A little. JPG is a lossy format, so every save re-compresses it, and after multiple edits the image quality slowly degrades.
After converting PNG to JPG in 2345看图王 the background turned white. Is this normal, and how do I avoid it?
It is normal. JPG does not support transparency, so when 2345看图王 converts a PNG with a transparent background to JPG it fills with a white background.
Will batch conversion in 2345看图王 change the resolution or quality of the images?
Format conversion itself generally does not change the pixel dimensions
If I bring in an SVG vector graphic, can 2345看图王 convert it to PNG to use?
It is worth a try. 2345看图王 supports viewing SVG, and can usually convert a vector graphic to a bitmap like PNG or JPG for sending and uploading

Sources:Adobe Official (Photoshop/PSD) · Apple Official Support (HEIF/HEVC) · Wikipedia: WebP · Wikipedia: TIFF
FAQ
Beyond viewing, 2345看图王 can also watermark, crop, batch convert and compress, and do AI cutout. This page explains by scenario how to use these editing and conversion features and whether the original is overwritten.
How do I add a text watermark to an image in 2345看图王?
In 2345看图王, choose the Add watermark feature, where you can enter a text watermark and set the font, size, transparency, and position, and even add it uniformly to multiple images in batch, which is good for preventing theft. After you finish, save it as a new image and the original is unaffected. Download the software from viewer2345.com, use Custom Install to uncheck the bundled items, and you can use it with confidence.
HEIC photos taken on an iPhone will not open on the computer. Can I use 2345看图王 to convert them to JPG?
Yes. 2345看图王 supports viewing HEIC directly, and it can also use batch conversion to turn HEIC into the universal JPG, which then opens fine on any computer or website, ideal for iPhone users importing photos to Windows. Download the official version from viewer2345.com and use Custom Install to uncheck the bundling boxes.
I want to crop off the excess edges of a photo. Can 2345看图王 crop directly?
Yes, it can. After opening an image, choose Crop in the editing tools of 2345看图王, drag the selection box around the area you want to keep, and confirm; it supports free aspect ratios and common ratios. Saving the crop as a new file means you will not overwrite the original. The software can be downloaded from viewer2345.com, and you keep it clean by unchecking the bundled options during Custom Install.
For a landscape photo my phone shot crooked, how do I rotate it back in 2345看图王?
Open the image in 2345看图王, click the rotate button on the toolbar, and you can rotate in 90-degree steps or do horizontal or vertical flips; once it is upright, just save. For batch scenarios you can also rotate an entire set of images to the same orientation at once. If you need the software, download the official version from viewer2345.com, and during installation choose Custom Install and uncheck the software suite.
My image is too dark. Can 2345看图王 adjust brightness and contrast?
Yes, it can do basic color adjustment. In the editing interface of 2345看图王 you can adjust parameters like brightness, contrast, and saturation, with a live preview as you drag the sliders, and save when you are happy with it. It is positioned as a viewer plus lightweight editor, so for fine retouching a professional program is still recommended. To install the software, use viewer2345.com, and Custom Install keeps it free of bundled software.
I want to draw arrows and write text on an image to annotate it. Does 2345看图王 support that?
It supports simple annotation. After opening an image in 2345看图王, the editing or screenshot mode usually includes annotation tools like pen, arrow, text, and mosaic, which are good for marking key points and adding explanations; just save when you are done. For complex layouts a professional tool is recommended. Download from the official entry viewer2345.com, and unchecking the bundled options during installation is the most hassle-free.
I need to resize a batch of images to the same dimensions. Does 2345看图王 have a batch resize feature?
Yes, it does. 2345看图王 has built-in batch processing; choose Batch resize, import multiple images, set the target size by pixels or percentage, lock the aspect ratio to prevent distortion, and output them all at once. It is great for standardizing ID photos or product image dimensions. Download the software from viewer2345.com, uncheck the bundled options during Custom Install, and it stays clean to use.
I have a few hundred PNG files I want to batch-convert to JPG. Can 2345看图王 do that?
Yes, it can. Use Batch convert in 2345看图王, import the whole set of PNG images, choose JPG as the target format, set the output folder, and convert in one click; even a few hundred can be batch processed. Note that converting PNG to JPG loses the transparent background (it becomes a white background). Download the software from the official viewer2345.com, and avoid the bundles during Custom Install.
Many programs do not recognize WebP images downloaded from the web. How do I convert them to JPG in 2345看图王?
Open the WebP image in 2345看图王 and you can save a single one as JPG; if there are many, use Batch convert, import the whole set, choose JPG as the target, and do it all at once, after which compatibility is good and they work everywhere. It natively supports viewing WebP, so you can confirm the content before converting. Download the software from viewer2345.com, and avoid the software suite during Custom Install.
My image file is too large and I want to compress it. Can 2345看图王 reduce the file size?
Yes, it can. 2345看图王 has a batch compression feature; after importing images, adjust the quality or target file size to clearly reduce the file size, making uploading and sending easier, and it can process many at once. Compression is lossy, so as long as you do not set the value too low you can balance clarity. If you need the software, download from viewer2345.com and uncheck the bundled options during Custom Install.
Will compressing images with 2345看图王 make them blurry? How do I compress small without too much loss?
There will be some loss, but it is controllable. When compressing in 2345看图王, keep the quality at a higher setting (around 80%), and the size drops noticeably while the difference is almost invisible to the eye; if you want lossless, prefer formats like PNG. It is best to keep the original before compressing. Download the software from viewer2345.com, and avoiding the bundles during Custom Install is the most hassle-free.
I have a pile of randomly named photos I want to renumber and rename uniformly. Does 2345看图王 support batch rename?
Yes, it does. Batch rename in 2345看图王 can apply a uniform rule to a whole set of images, such as a prefix plus sequence number like Trip_001, Trip_002, renaming them all at once, which is a real time-saver for organizing albums. You can preview the result before confirming the rename. Please download the official version from viewer2345.com, and during installation choose Custom Install and uncheck the software suite.
I want to merge several images into one PDF. Can 2345看图王 convert images to PDF?
Yes, it can. 2345看图王 supports converting images to PDF, and multiple images can be merged into a single PDF file, making printing and sending easier; it can also read PDF and OFD, with the companion 2345PDF for more processing. Importing them in order during conversion lets you control the page order. Download the software from viewer2345.com, and uncheck the bundled options during Custom Install.
During a meeting I want to capture a region of the screen. How do I use the screenshot feature in 2345看图王?
It is very convenient. 2345看图王 has a screenshot feature; once started, select any region of the screen to capture it, and you can add arrows, text, mosaic, and other annotations as you capture, then save or copy when done. It is great for making tutorials or explaining issues in messages. If you need the software, download the official version from viewer2345.com, and avoid the bundled items during Custom Install.
I want to cut a person out of the background. Is the AI cutout in 2345看图王 accurate?
2345看图王 has an AI cutout that automatically detects a person or main subject and removes the background, which is good enough for everyday ID photos and e-commerce images; when the edge details (such as strands of hair) are complex, some manual touch-up may be needed. After cutting out, you can change the background or save as a transparent PNG. Download the software from viewer2345.com, and unchecking the bundled options during Custom Install keeps it clean to use.
After cutting out an image I want to swap in a solid color or another background. Can 2345看图王 change the background?
Yes, it can. After removing the original background with the AI cutout in 2345看图王, you can usually swap in a solid color like white or blue, or a custom background image, which is handy for ID photos and product main images; just save once it is done. The result depends on whether the cutout edges are clean. If you need the software, download from viewer2345.com, and avoiding the bundles during Custom Install is the most hassle-free.
After I convert images with 2345看图王, where did the files get saved?
They usually go to the output folder you specified before converting; for batch processing, 2345看图王 lets you choose the save directory or defaults to the same folder as the originals (possibly with a new suffix). If you cannot find them, look back at the path setting in the conversion dialog. It is best to specify a memorable folder yourself each time. Download the software from viewer2345.com, and avoid the bundles during Custom Install.
When I save after editing in 2345看图王, will it overwrite the original?
It depends on how you save. In 2345看图王, if you choose Save as and rename or change the directory, the original is kept; choosing Save directly may overwrite the original file. It is best to back up before editing or get into the habit of saving as a new image to avoid accidental overwrites. For batch processing it is also best to set a separate output folder. Please download the official version from viewer2345.com, and uncheck the bundled options during Custom Install.
I want to convert a TIFF scan to JPG to make emailing easier. Can 2345看图王 do that?
Yes, it can. 2345看图王 supports viewing TIFF and can also convert TIFF to the smaller JPG via batch convert, making emailing and uploading easier, and multiple scans can be processed at once. If you need to keep multiple pages, consider converting to PDF. Please download from the official viewer2345.com, and avoiding the bundles during Custom Install gives more peace of mind.
For the PSD files a design colleague gave me, can 2345看图王 open them and convert the format?
Yes, it can both view and convert. 2345看图王 supports viewing PSD (showing the merged composite), and can convert it to common formats like JPG and PNG for easy preview and sharing, but it does not do layered editing, so changing layers still requires professional software. For everyday viewing and format conversion it is enough. Download from viewer2345.com, and uncheck the bundled options during Custom Install.
Can I use 2345看图王 to convert RAW originals from a camera to JPG for viewing?
Yes, you can. 2345看图王 supports viewing common RAW formats and can convert RAW originals to JPG for quick browsing and sharing, but professional RAW color grading is still best done with the camera maker software or a professional program. For everyday culling and producing small images, the viewer is convenient enough. Download the software from viewer2345.com, and just avoid the software suite during Custom Install.
Can a 2345看图王 screenshot be copied straight into WeChat to paste, without saving a file first?
Yes, it can. After capturing with 2345看图王 there is usually a Copy to clipboard option, so you can paste directly into WeChat or a document with Ctrl+V without saving a file first, which makes sending images fast; if you need to archive it, just choose Save. Use whichever of the two ways suits you. If you need the software, download from viewer2345.com and uncheck the bundled options during Custom Install.
Can 2345看图王 convert an animated GIF to a static image or another format?
Yes, it can. 2345看图王 supports viewing animated GIFs, and when converting it generally takes one of the frames and exports it as a static image like JPG or PNG; if you want to keep the animation, stay in the GIF format. The exact frame-picking method depends on the software interface, so test to confirm when needed. Please download from the official viewer2345.com, and avoiding the bundles during Custom Install is the most hassle-free.
Can 2345看图王 convert a new format like AVIF to JPG?
Yes, it can. 2345看图王 supports viewing newer formats like AVIF and can convert it in batch or one at a time to the most compatible JPG, so it opens normally in older software and across various platforms. AVIF to JPG becomes lossy, so keeping the quality higher is safer. Please download the official version from viewer2345.com, and uncheck the bundled options during Custom Install.