Most flatbed and document scanners produce one file per page — either a JPG image or a single-page PDF. A ten-page contract or a stack of receipts quickly becomes ten separate files that you need to submit, share, or archive as one document. Combining them is a two-minute job with the right tools.
Two Scenarios: Images vs. PDFs
The approach depends on what format your scanner outputs:
| Scanner Output | Best Tool | Steps |
|---|---|---|
| Individual JPG or PNG images | JPG to PDF | Upload all images, reorder, convert to one PDF |
| Individual single-page PDFs | Merge PDF | Upload all PDFs, reorder, merge into one PDF |
| Mix of images and PDFs | JPG to PDF, then Merge PDF | Convert images to PDF first, then merge everything |
How to Combine Scanned Images Into One PDF
- Open the JPG to PDF tool
- Upload all your scanned image files — JPG, PNG, or both
- Drag to reorder — arrange them in document page order
- Choose page size — A4 or Letter for standard document pages
- Click Convert — all images become pages in a single PDF
- Download your combined PDF
How to Merge Scanned Single-Page PDFs
- Open the Merge PDF tool
- Upload all your single-page PDFs
- Drag to reorder into the correct page sequence
- Click Merge
- Download the combined document
Getting the Page Order Right
Page order is the most important thing to get right before merging. Both the JPG to PDF and Merge PDF tools show visual thumbnails of each file before you combine them, so you can drag them into the correct sequence. If your scanner numbers files automatically (page_001.jpg, page_002.jpg), sort them by filename before uploading and they'll usually arrive in order.
If you realize the order is wrong after merging, you can always go back and reorder the pages in the resulting PDF.
After Combining: Make It More Useful
Run OCR on the combined PDF to add a searchable text layer to all pages.
PDF OCRScanned PDFs can be large — compress to reduce file size for email or upload.
Compress PDFStamp sequential page numbers on the combined document for easy reference.
Add Page NumbersDealing With Duplex Scans
Some scanners scan both sides of a page in two passes — all odd pages first, then all even pages. This produces two sets of files that need to be interleaved (1, 2, 3, 4... not 1, 3, 5... then 2, 4, 6...). The easiest approach: use the Merge PDF tool to upload both sets and manually drag the even-numbered pages into the right positions between the odd-numbered ones.
- For scanned images (JPG/PNG), use JPG to PDF to combine them into one document
- For scanned single-page PDFs, use Merge PDF to combine them
- For a mix of both, convert images to PDF first, then merge everything
- Reorder thumbnails before merging — getting page order right first saves extra steps
- After combining, run OCR to make the text searchable and compress to reduce file size
- Duplex scans need manual interleaving — drag even pages between odd pages
Combine your scanned pages into one PDF — free.
Images or PDFs, any order, any number of pages. Processed in your browser.