Anvil Tools
Image to PDF Converter
Turn JPG, PNG, or WebP images into ordered pages in one downloadable PDF.
Open tool →PDF Merge
Add two or more PDF files and they'll be stitched together into one document, in the order shown in the list. Everything happens in your browser, so your files are never uploaded to a server.
Use readable, unencrypted PDFs. Check forms, signatures, and bookmarks in the output; their interactive behavior is not guaranteed.
Combine PDF files
Click to choose PDF files or drag and drop them here
Add two or more PDFs, then use Move up or Move down to arrange them
Add two or more PDFs, then use Move up or Move down to arrange them
Check the four-page assembly example
The worked fixture combines a one-page cover, a two-page application, and one supporting page. Move whole files into that order, merge, then inspect all four pages. Moving a file does not rearrange pages within it.
| Input or check | Expected result or decision |
|---|---|
| cover.pdf | Page 1: 420 × 594 PDF points. |
| application.pdf | Pages 2–3: 400 × 600 and 401 × 601 points. |
| support.pdf | Page 4: 360 × 480 points. |
Cover PDF · Application PDF · Support PDF · Inspect the four-page result
How it works
- Choose or drag in the PDF files you want to combine.
- Use Move up, Move down, or Remove to arrange the file list. All pages within each PDF keep their original order.
- Click merge, and the combined file downloads straight to your device.
Common uses
- Combining several scanned pages into one document to send or print.
- Putting together a multi-part report or application from separate PDF sections.
- Merging an invoice and its attachments into a single file for record-keeping.
Your privacy matters here: check the FAQ below for exactly what happens to anything you enter into this tool.
Check page order
Add two unencrypted PDF documents, inspect their order in the list, and remove any unwanted file before merging. Open the downloaded PDF to confirm every page is present. Corrupt or password-protected PDFs may not be supported.
A practical walkthrough
- Combine a cover letter and supporting documents into one PDF. Arrange the files in the order the recipient should read them.
- Open the downloaded document and check the page order, rotation, and total page count.
- Use Merge and download, then open the PDF and check its page order. Keep the source documents.
Tips for a reliable result
Encrypted, damaged, or unusually large files may fail. Try a smaller batch and retain the original documents.
What to use next
These tools open separately; inputs are not transferred.
QR Code Generator
Turn any link or short message into a scannable QR code you can download as an image.
Open tool →Word & Character Counter
Count words, characters, sentences, and estimated reading time as you type.
Open tool →Background Remover
Remove the background from a photo automatically, processed locally in your browser.
Open tool →How this tool handles your data
Selected PDFs are combined in your browser and are not sent to an Anvil merge server.
Known limitations
Encrypted files and complex signatures, forms, bookmarks, attachments, tags, and accessibility structures may not be preserved. Large documents can exceed device memory.
Related guide and Lab test
Tool test card
- Tested
- October 5, 2026
- Input types
- Unencrypted PDF files
- Processing
- Runs in this browser
- Maximum tested size
- Four-page synthetic fixture
- Observed limitation
- Signatures, forms, bookmarks, attachments, tags, and encrypted files need separate checks.
- Privacy note
- Selected PDFs are not sent to an Anvil merge server.
Questions and troubleshooting
Is there a limit to how many files I can merge?
There's no fixed limit, but very large combined files take longer to process since everything happens on your own device.
Can I merge password-protected PDFs?
No. Remove the password from a PDF first using your PDF reader, then merge it here.
Does merging reduce file quality?
No. Pages are copied as-is, so the content and quality of each original file is preserved.
When a PDF cannot be merged
Check that every selected file is a readable, unencrypted PDF. Try each source in a PDF reader to identify a damaged file. If a large batch exhausts browser memory, use smaller batches and recheck page order. This tool has no password-unlocking control.
Will merging make scanned pages searchable?
No. Merging copies pages into a combined document; it does not run optical character recognition. An image-only scan remains image-only.
How do I check the final document?
Open the downloaded PDF, check its page count and order, and inspect important pages. Forms, signatures, bookmarks, and other document features may not survive a merge as you expect.
Explore practical guides and experiments
Can You Merge Digitally Signed PDFs? What Happens to Signature Verification
Can you merge digitally signed PDFs without losing verification? Learn what happens to signatures, how to validate them, and safer ways to combine documents.
Why You Can't Search a Scanned PDF: Understanding OCR, Text Layers, and Accessibility
Can't search or copy text from a scanned PDF? Learn why image-only PDFs behave differently, how OCR works, and how to check text accuracy and accessibility.
PDF Workflows: Merge Files, Convert Images, and Check the Result
Prepare readable images, assemble PDFs in the right order, and check page dimensions, protected files, forms, signatures, and the final download.