Merge multiple images into one PDF

We support JPG, PNG, WEBP, TIFF, and HEIC image formats. You can also upload ZIP archives containing these image types.

You can upload up to 50 individual images or ZIP archives with a total size limit of 500MB.

Yes, you can drag and drop images to reorder them before conversion. The order determines how they appear in the final PDF.

Yes, images are embedded in the PDF without compression, maintaining their original quality and resolution.

This determines the PDF page dimensions. "Fit to Image" creates pages matching each image size (recommended for mixed sizes). Standard sizes like A4 or Letter create uniform pages with margins around smaller images.

Controls page direction. "Auto" chooses portrait/landscape per image. "Portrait" (vertical) or "Landscape" (horizontal) forces all pages to one orientation. Auto works best for mixed image types.

Adds white space around images on each page. Default is 0 px. You can add margins both horizontally and vertically, by indicating through pixels. Useful when you want consistent spacing or need room for hole-punching printed documents.

Converting a file to PDF ensures your document stays consistent and accessible. PDFs lock in formatting, design, and structure, preventing layout shifts that can happen with editable file types. They’re compatible with virtually all devices and operating systems, making them ideal for professional documents, forms, reports, and presentations. PDFs are also easy to distribute; whether through email, downloads, cloud platforms, or QR-codes that let users open a file instantly on their phone.

Our intelligent software minimizes quality loss when converting documents. As such, documents can be converted without having to worry about quality loss for a great number of times.

No; our intelligent PDF software recognizes document layouts and transforms them accurately onto a new file format. Was your lay-out or format not transformed accurately? Consider applying OCR, or applying different customization settings to convert it correctly.

Yes! There are no limits to converting documents, and documents can safely and easily be converted back and forth. Conversion can be handy to edit a PDF document in Word, and later convert it back into an organized PDF format.

To merge PDF documents simply go to our converter, choose the file format you’re merging, and drag and drop the files you want to merge. Then you have the opportunity to edit some settings, press merge, and you’re done! You can download your merged file right away.

Yes, PDFengine offers various means of customizing your (PDF) documents. Consider adding a cover page, applying OCR, or using PDF/A as output.

If the text is not copyable, clickable, or searchable, that means the text is not recognized within the PDF. Try uploading your document onto PDFen and applying OCR. OCR technology will make your text readable. In case it doesn’t work completely in one go: apply OCR a second time.