PDF Image Adding Tool

Add images, watermarks, and logos to PDF files online, supporting single and batch processing, with options to set position, opacity, rotation, and other parameters.

Bug report

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

Loading tool, please wait...

If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

Return to old version

Set up first, then process

Select PDFs, add images, confirm page range, position, opacity, and other settings, then start. All PDFs are processed; only the first 20 files are shown.

Local processing

Select PDF files

Select one or more PDFs. Batch processing keeps original file names; duplicates get an added number.

Step 1

Select or drop PDFs Multiple selection supported. Only the first 20 are shown, but all will be processed.

PDF list Not selected

Please select PDF files before continuing.

Select image to add

Use one image to add the same logo or watermark to all PDFs; use file name matching to apply same-named images to each PDF.

Step 2

Image mode Choose first, then upload images

Unified image Use the same image for all PDFs. Match by file name Auto-match PDFs and images by base file name. Match by order The 1st PDF uses the 1st image, and so on.

Select or drop images Supports common images such as PNG, JPG, WebP, GIF, and BMP; non-PNG/JPG files are converted to PNG before being added to the PDF.

Image Preview Not selected

Please select an image to continue.

Set image position and pages

Confirm the page range and layout settings before processing. Coordinates are based on the PDF page's top-left corner, and margins use PDF points.

Step 3

Pages and position Supports custom page ranges

Add page

Custom pages Supports single pages, comma-separated pages, and ranges, e.g. 1-3,6,9.

Image position

X coordinate

Y coordinate

Horizontal margin

Vertical margin

Layer position

Image style Good for logos, watermarks, signatures

Sizing method

Scale

28%

Page width percentage

22%

Fixed width

Opacity

85%

Rotation

0°

Tile Spacing

Output filename suffix If set, the suffix is appended to the original filename, e.g. contract_logo.pdf.

Generate PDF result

Files, images, and settings will be checked before processing. Multiple results are zipped automatically; a single result can be downloaded directly or as a ZIP.

Step 4

Please complete the PDF, image, and settings first.

Waiting to process.

Results

No results yet.

Instructions

Software Instructions

Select PDF files: Click the “Select or drag in PDF” area to choose the PDF files you want to add images to. A single file is supported, and you can also select multiple PDFs at once for batch processing.
Choose how images are used:
- Unified image: Use the same image for all PDFs, suitable for batch adding a unified logo, watermark, or signature image.
- Filename matching: Automatically match images with the same name based on the PDF filename, for example contract.pdf corresponds to contract.png.
- Sequential matching: Match PDFs and images in the order the files are selected, suitable for files that have already been arranged in advance.
Upload image files: Select the images to insert into the PDF. Common formats such as PNG, JPG, JPEG, WebP, GIF, and BMP are supported. PNG is recommended for logos with transparent backgrounds.
Set adding parameters:
- Pages to add to: Choose all pages, first page, last page, odd pages, even pages, or a specified page range.
- Image position: Choose center, four corners, top, bottom, horizontal center left/right, custom coordinates, or tiled watermark.
- Size mode: Supports scaling by page width percentage, scaling by original image ratio, fixed width, and fit to page width.
- Appearance settings: Set opacity, rotation angle, horizontal margin, vertical margin, and tile spacing.
- Layer position: Choose to place the image above the content or below the content.
Save common settings: Click “Save Settings” to save the current parameters and apply them automatically next time; you can also click “Load Example Settings” to quickly apply common logo parameters.
Start processing and download: Click “Start Adding Images” to generate the results. A single result can be downloaded individually, while multiple results can be packaged and saved by clicking “Download All ZIP”.

FAQ

A: Common image formats such as PNG, JPG, JPEG, WebP, GIF, and BMP are supported. When used for logos, signature images, or transparent watermarks, PNG is recommended first.

A: In “Pages to add to”, select “Specified pages”, then enter the page range. Single pages, continuous ranges, and combined formats are supported, for example: 1, 3, 5-8, 1-3,6,9.

A: Single image is suitable for adding the same logo or watermark to all PDFs; filename matching is suitable when each PDF corresponds to an image with the same name; order matching pairs PDFs and images one by one according to the selection order.

A: Yes. Select “Place below content” under “Layer position”, and the image will be added to the page as a background element; if you need the logo or signature to be clearly visible, choose “Overlay above content”.

A: Results use the original PDF filenames by default. If duplicate filenames occur, the system automatically appends a number to the filename to prevent overwriting; multiple results can be packaged as a ZIP for download.

A: Common causes include damaged PDF files, encryption restrictions, abnormal file structure, unreadable image files, or files that are too large. We recommend removing PDF protection first and using standard PDFs and common image formats.