📖 Operation Guidelines
Image Converter
Select the output format from the dropdown menu, and click the start conversion button to complete the image format conversion.
On the converted image on the right, click the Rotate and flip buttons to adjust the image orientation, click the Reset button to restore the image to its initial state.
Click the crop button below Original Image to enter crop mode. Hold the Rotate icon at the bottom right corner of the crop box to rotate it at any angle. Click the pen icon in the center to manually input width and height. Move mouse inside the crop box to see four-way arrows for dragging. Hold the squares around the crop box to adjust size. Click Apply button to confirm the crop.
Add Watermark to Image
Enter your watermark text in the text input box, select font and color, drag the circular slider to adjust font size, opacity, and tilt angle. Check "Tile Watermark" to create a tiled watermark effect, adjust the tile density with the slider.
For Image Watermark, select any image as watermark, drag the circular slider to adjust watermark image size, opacity, and tilt angle. You can also check "Tile Watermark" to create a tiled image watermark effect, adjust the tile density with the slider.
Upload a clear frontal portrait photo, otherwise detection will fail.
The crop box is automatically generated at the optimal size and position based on intelligent face recognition. You can also manually adjust the crop size and position. Choose various background colors and specifications on the right side, download single or 8-photo layout for convenient batch printing.
Image Split Image Split & Merge
Merge
Select 1 image to enter split mode by default, select multiple images to enter merge mode, up to 16 images can be selected for merging.
In image merging, canvas size can be manually inputted in addition to preset ratios, maximum 8000x8000px.
In image merging, click to select an image (blue border appears). Use mouse wheel to zoom up to 500%. Drag to move image. Moving to adjacent image position will automatically swap positions.
After selecting an image, click the flip button in the right panel to flip the image, click the Reset button to restore to initial state.
After selecting an image, drag the Rotate slider in the right panel to rotate the image.
Place mouse at image seam, hold and drag to adjust seam position.
Canvas background defaults to white, can select any color or upload an image as background. Border size, spacing, and corner radius can be adjusted with sliders.
Document to Image
Supports PDF upload, can convert page-by-page (each page becomes one image) or convert to long image (merge all pages into one long image). For PPT/Word documents, export to PDF first.
Ultra HD or HD quality produces larger file sizes. For smaller sizes, choose Normal or Compact mode.
Conversion range can be set to any page numbers for flexible selection and reduced file size.
For long images: if length exceeds 16383px, cannot use WEBP format. If exceeds 65535px, cannot use JPG/JPEG. PNG has no length limit.
Image to Document
Supports uploading up to 200 images, convert to one or multiple documents, supports saving as PDF.
Hold and drag photos to adjust order. Select output method and page size, then click the convert button to generate and download the document.
⚙️ Feature Limitations
Image Compression Crop
Quantity limit: Upload up to 60 images simultaneously (not recommended to batch upload images larger than 10M as it may cause browser freeze)
Image size: Maximum 200MB per image
Input format: JPG, JPEG, PNG, WEBP, GIF, AVIF, BMP, TIFF, ICO, HEIC, PSD
Output Format: JPG, JPEG, PNG, WEBP (default JPG; if input image has a side exceeding 65535 pixels, output defaults to PNG)
Crop limit: Cropping not supported if image side exceeds 30000 pixels
Output name: originalname_compressed_timestamp (single); originalname_compressed_timestamp_number (multiple)
Progress indicator: Shows when total size exceeds 10MB, no indicator when less than 10MB (usually completes in 1 second)
Add Watermark to Image
Quantity limit: Upload up to 60 images simultaneously (not recommended to batch upload images larger than 10M as it may cause browser freeze)
Image size: Maximum 200MB per image
Input Format: JPG, JPEG, PNG, WEBP, GIF, AVIF, BMP, TIFF, ICO, SVG, HEIC/HEIF, PSD
Output Format: If input format is JPG, JPEG, PNG, or WEBP, output format matches input; for other formats, output is automatically converted to PNG
Output Filename: originalname_watermarked_timestamp (single); originalname_watermarked_number (multiple)
Watermark type: Text Watermark, Image Watermark
Watermark quantity: Single watermark, Tiled batch watermark
Max Upload: 1 photo at a time
Image Size: Max 200MB
Input Format: JPG, JPEG, PNG, WEBP, GIF, AVIF, BMP, TIFF, ICO, SVG, HEIC/HEIF, PSD
Output Format: PNG, JPG, JPEG, WEBP
Photo Requirements: Front-facing portrait with clearly visible face
Image Split Merge
Max Upload: 1 image for split mode, up to 16 for merge mode
Image size: Maximum 200MB per image
Input Format: JPG, JPEG, PNG, WEBP, GIF, AVIF, BMP, TIFF, ICO, SVG, HEIC/HEIF, PSD
Output Format: JPG, JPEG, PNG, WEBP
Output Size: Max 8000x8000px, Min 100x100px
Progress: Shows when total upload size exceeds 30MB, no indicator below 30MB (usually completes in 1 second)
Split Mode: Upload 1 image to enter split mode; supports custom rows/columns, max 10x10 grid
Merge Mode: Upload 2-16 images to enter merge mode; each puzzle type has multiple template layouts
Document to Image
Max Upload: 1 document at a time
File Size: Max 500MB, up to 3000 pages
Input Format: PDF
Output Format: JPG, JPEG, PNG, WEBP
Output Size: JPG/JPEG max height/width is 65535px. For long images exceeding this, reduce page range, use PNG output, or choose Normal/Compact to reduce image size. WEBP is not recommended for long images as WEBP max pixel limit is 16383px
Progress: Progress indicators shown for both document upload and conversion
Page Range: Flexibly select any consecutive page range
Image to Document
Max Upload: 200 images in batch (not recommended to batch upload images larger than 10MB as it may cause browser freeze)
File Size: Max 200MB per image
Input Format: JPG, JPEG, PNG, WEBP, GIF, AVIF, BMP, TIFF, ICO, SVG, HEIC/HEIF, PSD
Output Format: PDF
Progress: Shows when total size exceeds 10MB, no indicator below 10MB (usually completes in 1 second)
