You receive a contract PDF, print it out, sign it, scan it—and suddenly you've got a handful of scattered files. There's the original contract from the other party, two scanned JPGs, and an attachment that needs to go along with everything. How do you pull all of this together into one complete PDF before sending it back? It's a situation a lot of people run into when dealing with contract exchanges.
This article breaks the process down by common scenario and walks you through the most straightforward approach for each one.
Take Stock of What You Have
Before you start merging anything, figure out what formats you're actually working with:
- The original contract from the other party: usually a PDF
- The pages you signed by hand: possibly scanned JPGs or PNGs, or photos taken with your phone
- Attachments or addenda: possibly another PDF, or a Word file
Different combinations call for different steps, so knowing what you have upfront will save you from going in circles.
Scenario 1: Your Signed Pages Are Scanned Images (JPG / PNG)
This is the most common situation. You printed the contract, signed it, and scanned it with a scanner or a phone app—ending up with image files. What you need to do is straightforward:
- Convert the images to PDF
- Merge that PDF with the original contract into a single file
For the first step, use the JPG to PDF tool. Upload your signed page images, arrange them in the right order, and convert—you'll get a clean PDF in seconds.
Once that's done, you'll have two PDFs: the original contract and your signed pages. Then it's time to merge.
Scenario 2: The Attachment Is a Word Document
If the other party needs you to include a Word document as an attachment—say, a filled-out form—you'll need to convert it to PDF first so it can be combined with the contract. Use the Word to PDF tool to upload your .docx file and get a properly formatted PDF in seconds. No need to worry about the layout breaking on the recipient's end.
Merge Everything Into One PDF
Once all your materials are in PDF format, it's time to bring them together. Use the Merge PDF tool, upload all the files you need to combine, and drag them into the right order:
- File 1: Original contract (from the other party)
- File 2: Your signed pages
- File 3: Attachments or addenda (if any)
When the order looks right, hit merge and download the result. That's the complete contract document you'll be sending back.
A Note on Page Order
Page order matters in contract documents, especially when there are multiple attachments. Before uploading, it helps to rename each PDF clearly—something like 01_contract-body.pdf, 02_signed-pages.pdf, 03_exhibit-a.pdf—so you're not guessing when you drag them around in the tool.
If your scanned pages came out rotated the wrong way (landscape instead of portrait, or upside down), fix that with the Rotate PDF tool before merging, so the other party doesn't have to deal with it on their end.
One Last Check Before You Send
Before you hit send, it's worth spending a couple of minutes on a few quick checks:
Verify the page count Flip through the PDF quickly in a reader and confirm the total number of pages matches what you expect. Make sure nothing is missing or duplicated.
Check the legibility of your signature If the scan quality is too low, your signature might come out blurry and unreadable. If that's the case, rescan at a resolution of at least 200 DPI.
Check the file size Contract documents don't need to be huge, but if you scanned at a high resolution and included several images, the PDF could balloon to tens of megabytes—enough to bounce off some corporate email servers. Run it through the Compress PDF tool to shrink it down. The visual quality will be nearly identical, but the size might drop from 15 MB to under 3 MB, which clears the attachment limit for most email systems.
Write a clear subject line Make your email subject line explicit: something like "Signed Contract – [Contract Name or Reference Number]". Attach the merged PDF. If the contract has a signing date or version number, consider including that in the filename too—it makes archiving easier for both sides.
Quick FAQ
Q: The contract I received is a scanned PDF (image-only, no text layer). Do I need to do anything special? No. Since you're only merging this file—not editing the text inside it—you can use it as-is.
Q: My signed pages were photographed on my phone and saved as HEIC files. Will those work? HEIC files have poor compatibility on Windows. It's best to switch your phone's camera settings to save as JPG, or convert the HEIC files to JPG before uploading. The JPG to PDF tool supports JPG and PNG formats.
Q: The contract is long, but I only need to replace the last page with my signed version. How do I handle that? Use the Split PDF tool to extract all the pages before the signature page from the original contract. Then merge that extracted portion with your signed page PDF—and the order will be exactly right.
The overall workflow is simpler than it sounds: images → PDF, Word → PDF, all PDFs → merged into one. That's it.
If you've got a handful of scattered contract files sitting in front of you right now, head over to the Merge PDF tool and bring them all together. You'll have a clean, complete contract ready to send in a matter of seconds.