JPG に PDFコンバーター — 高速＆無料

Converting JPG to PDF wraps one or more JPEG images into a fixed-layout PDF document, making photographs and scanned pages shareable as a single file with consistent page dimensions. JPEG stores photographic content using lossy DCT compression; PDF embeds the image data into a self-contained document governed by ISO 32000. During conversion, each JPEG is placed on a page sized to match the image dimensions or a standard paper size (A4, Letter) as selected. The original JPEG data is stored in the PDF without re-compression, so no additional quality loss occurs. Multiple JPEGs can be merged into a single multi-page PDF in the order you specify. The resulting PDF includes the embedded image with its original EXIF orientation applied, so the page displays correctly regardless of the device. 1converter generates the PDF using LibreOffice or a direct PDF writer, preserving colour space information from the source JPEG.