JPG to PDF Converter – Convert Multiple Images into PDF Online
The JPG to PDF Converter is an online tool that allows users to combine multiple JPG, PNG, and WebP images into a single PDF document. It provides options for page size, orientation, and image quality, making it useful for converting photos, scanned documents, notes, forms, and other images into a PDF file.
Users can select multiple images, preview their files, customize conversion settings, and download the generated PDF directly to their devices.
Features of the JPG to PDF Converter
Multiple Image Conversion: Combine multiple images into one PDF document.
Supported Image Formats: Select JPG, PNG, and WebP images through the upload interface.
Page Size Options: Choose A4, Letter, or Fit to Image.
Orientation Settings: Select Auto, Portrait, or Landscape for standard page sizes.
Image Quality Control: Choose High, Good, or Medium quality.
Image Preview: View image thumbnails, filenames, and sequence numbers.
Automatic Image Scaling: Fit images proportionally within standard PDF pages.
Conversion Progress: View status messages while images are processed.
Automatic Download: Download the generated PDF as
images-to-pdf.pdf.Clear Option: Reset the selected images and begin a new conversion.
Responsive Design: Use the converter on desktop computers, tablets, and mobile devices.
How to Convert JPG to PDF Online
Step 1: Select Images
Click the Select Images button and choose one or more images from your device. The selected images appear as thumbnails with filenames and sequence numbers.
Step 2: Choose the Page Size
Select the page size that suits your document requirements.
A4: Suitable for standard documents, notes, and printing.
Letter: Useful for documents intended for Letter-sized paper.
Fit to Image: Creates custom-sized pages based on image dimensions.
Step 3: Set the Orientation
Choose Auto, Portrait, or Landscape. Auto selects portrait for taller images and landscape for wider images. For A4 and Letter pages, you can choose the orientation according to your requirements.
Step 4: Select Image Quality
Choose High, Good, or Medium quality. High quality generally preserves more visual detail, while Medium applies stronger JPEG compression and may reduce image clarity.
Step 5: Convert and Download the PDF
Click Convert to PDF to begin processing. The tool converts the selected images into PDF pages and automatically downloads the completed document as images-to-pdf.pdf.
Page Size Options Explained
The converter offers three page size settings for different document needs.
A4: Creates standard A4 pages and scales images proportionally to fit within the available page area.
Letter: Creates Letter-sized pages suitable for compatible printing and document formats.
Fit to Image: Creates a custom-sized page for each image using its pixel dimensions converted into millimeters.
When Fit to Image is selected, the page dimensions and orientation are determined by the image itself. The selected orientation and image quality settings do not control this mode in the same way as they do for A4 and Letter pages.
Image Quality and PDF File Size
The Image Quality setting controls JPEG encoding for images processed on A4 and Letter pages. The available values are 0.95 for High, 0.85 for Good, and 0.70 for Medium.
High quality is useful when image detail is important. Good offers a balance between clarity and compression, while Medium applies stronger compression and may reduce image quality.
The final PDF size depends on the dimensions, content, and number of selected images. The tool does not guarantee a specific output file size.
Supported Image Formats
The upload interface accepts JPG, PNG, and WebP images. For A4 and Letter pages, images are processed through a canvas and converted to JPEG before being added to the PDF. Transparent areas may therefore appear white.
The Fit to Image option uses a different processing method and passes the original image data to jsPDF while identifying it as JPEG. Consequently, WebP compatibility may vary in this mode.
Privacy and Security
The tool processes selected images in the browser using JavaScript, the FileReader API, the canvas element, and the jsPDF library. The provided code does not include a dedicated server-side image conversion endpoint.
The jsPDF library is loaded from an external CDN, so an internet connection may be required to load the conversion functionality. Users should also consider the privacy practices of the website hosting the converter.
Limitations of the JPG to PDF Converter
The current version does not provide options to rearrange images after selection, remove individual images, crop images, rotate individual images, add PDF passwords, or choose a custom output filename.
The generated file uses the fixed name images-to-pdf.pdf. Advanced PDF editing, optical character recognition, and a dedicated PDF compression setting are also not included.
Conclusion
The JPG to PDF Converter provides a convenient way to combine multiple images into one downloadable PDF document. Its page size options, orientation controls, image quality settings, thumbnail previews, and automatic downloading make it useful for everyday document preparation, printing, sharing, and storage.