How to convert JPG and multiple images into one PDF
Choose JPG, PNG, or WebP files, arrange their order, select a layout and paper size, then create the PDF for free in your browser. Use one image per page for records or a grid/contact sheet for several images on each page.
Place multiple images on an A4 page
Choose Multiple images per page, then set rows, columns, margins, and gaps. Show complete image preserves every edge; Fill the cell may crop edges to produce a uniform grid.
Create a PDF contact sheet with filenames
Choose Contact sheet, enable filenames, and use three or four columns for proofing. Rename files clearly before upload; long names are fitted inside their caption areas.
Choose PDF DPI and compression quality
150 DPI creates smaller screen-viewing files, 200 DPI suits most documents, and 300 DPI is intended for detailed printing. Lower JPEG quality reduces size but can blur text and fine lines.
Headers, page numbers, and PDF metadata
Headers and footers are rendered as text images so localized characters remain visible. Metadata includes title, author, subject, and keywords for document management.
Pre-print PDF checklist
Open the downloaded PDF and inspect page count, orientation, and cropping at 100%. Match A4, Letter, or 4×6 in the print dialog and test one page before printing a large quantity.
Image to PDF FAQ
Can I put multiple images on one PDF page?
Yes. Select a grid or contact sheet and set rows and columns. A page can hold up to 24 images with a 4 × 6 layout.
Does the PDF preserve physical print size?
A4, A5, Letter, and 4×6 presets use physical PDF dimensions. Select matching paper and avoid automatic Fit to page when exact output matters.
Which DPI should I choose?
Use 150 DPI for screen viewing, 200 DPI for balanced files, and 300 DPI for print. Raising DPI cannot restore detail missing from a small source image.
Can I password-protect the PDF?
Not currently. The installed pdf-lib version does not provide safe password encryption, so the tool does not expose a misleading protection option.
Are images uploaded to a server?
No. Images are read, compressed, and embedded into the PDF entirely in your browser.
Why is the PDF large?
Size grows with image count, DPI, JPEG quality, and image area. Reduce 300 DPI to 200 or lower quality for screen-only documents.