🔑 Key Takeaways
- Multiple images → one PDF — Combine any number of JPG or PNG images into a single document.
- Drag to reorder — Arrange images in exactly the order you want before creating the PDF.
- Flexible page sizes — Choose A4, Letter, or let pages fit exactly to your image dimensions.
- Quality preserved — Images are embedded without lossy recompression.
- 100% local — Your images never leave your device.
Quick Answer
Images to PDF combines multiple image files (JPG, PNG) into a single PDF document. Upload your images, drag to arrange them in order, choose your page size, and download a complete PDF. Processing happens locally in your browser—nothing is sent to a server.
Why Convert Images to PDF?
You have 15 receipt photos from a business trip. Or 30 scanned pages that came out as separate JPGs. Or a portfolio of design work spread across dozens of image files.
The problem?
Sending 15 separate files is messy. Recipients have to download each one, keep track of the order, and hope nothing gets lost. Images can be reordered, renamed, or separated. There's no single "document" to reference.
📋 Classic Scenario: The Expense Report
You photographed 12 receipts on your phone during a work trip. Finance needs them for reimbursement—but they want a single PDF, not 12 separate images. Solution: Drop all 12 images into the tool, arrange them by date, and download one organized PDF.
PDFs bundle everything together.
One file. Fixed order. Professional format. PDFs are the universal document standard—they look the same on every device, can't be accidentally reordered, and are accepted everywhere from accounting software to government portals.
Supported Image Formats
The tool accepts the two most common image formats:
| Format | Best For | Notes |
|---|---|---|
| JPG / JPEG | Photos, scans, screenshots | Most common format. Smaller files, slight quality loss. |
| PNG | Graphics, text, screenshots with transparency | Lossless quality. Larger files. Supports transparency. |
Mix and match: You can combine JPGs and PNGs in the same PDF. The tool handles both formats together—just drop everything in and arrange as needed.
File Limits
- Total size: 10MB maximum (combined)
- Image count: No hard limit, but very large batches may be slower
- Formats: JPG/JPEG and PNG only (no HEIC, TIFF, or RAW)
Page Size Options
Choose how your images fit onto PDF pages. The right choice depends on how you'll use the final document.
A4
Letter
Fit to Image
When to Use "Fit to Image"
Fit to Image makes each PDF page exactly the size of its source image. This is ideal for portfolios, photo collections, and any case where you want images displayed at their natural dimensions without letterboxing or cropping. If you'll be printing, choose A4 or Letter instead for consistent paper sizes.
Ordering Your Images
Page order matters. A contract with pages out of sequence is confusing. A photo album with images in random order tells no story.
You control the order.
After uploading images, you'll see thumbnails of each one. Simply drag them into the sequence you want. The first image becomes page 1, the second becomes page 2, and so on.
Ordering Tips
- Name files first: Images often upload in alphabetical order. Naming files "01-receipt.jpg", "02-receipt.jpg" etc. can pre-sort them.
- Drag to reorder: Click and drag any thumbnail to move it to a new position.
- Preview before creating: Double-check the sequence before clicking "Create PDF".
⚠️ Order is Locked After Creation
Once you create the PDF, the page order is fixed. To change it, you'd need to either recreate the PDF from your original images or use Reorder Pages to rearrange the existing PDF.
Common Use Cases
🧾 Expense Reports
- Combine receipt photos from trips
- Create organized expense documentation
- Submit single file to accounting
- Archive for tax records
📄 Scanned Documents
- Combine scanned pages into one document
- Reassemble documents from phone scans
- Create searchable archives
- Digitize paper records
🎨 Portfolios
- Compile work samples into one file
- Create shareable design portfolios
- Build photography collections
- Present artwork professionally
📸 Photo Albums
- Create event photo collections
- Build family photo books
- Share vacation photos as one file
- Print-ready photo compilations
📋 Application Packages
- Combine ID scans and documents
- Create complete application packets
- Bundle supporting materials
- Meet "single PDF" requirements
📊 Presentations
- Convert slide images to PDF
- Create handout versions
- Share presentation snapshots
- Archive visual materials
How to Convert Images to PDF
🛡️ Privacy note: Your images are processed entirely in your browser. The files never leave your device—there's no server upload. When you close the tab, the processing environment is cleared.
Quality & File Size: What to Expect
PDFOutfit doesn't recompress your images during conversion — the quality you put in is the quality you get out. That has implications for file size.
Rough file size math
- 10 phone photos (3 MB each) → PDF: ~30 MB output. Each image embeds at original quality.
- 20 scanned pages (200 KB each) → PDF: ~4 MB output.
- 50 screenshots (100 KB each) → PDF: ~5 MB output.
If your output PDF is too large for emailing or uploading, you have two options:
Option 1: Compress the images first
Use an image compressor (TinyPNG, Squoosh, ImageOptim) to reduce each image's size before importing. Image-level compression usually produces better quality at lower file size than PDF-level compression, because you can fine-tune quality per image.
Option 2: Compress the PDF after creation
Run the output PDF through Compress PDF. This applies image recompression across all pages at once and can typically reduce file size by 30-60% with minimal visible quality loss.
When you actually want a large file
For archival photo albums or print-ready PDFs, don't compress. Original quality matters more than file size when you'll want to print or zoom in years from now.
Specialized Workflows
Different source materials call for different conversion patterns. Here are the most common.
Phone Photos → Multi-Page PDF (e.g., receipts, business cards)
For receipts, business cards, whiteboards, or document photos shot with a phone:
- Take each photo with good lighting, document filling the frame
- Crop and rotate each image (your phone's photo app handles both)
- Convert to PDF with "Fit to Image" page size to preserve aspect ratios
- Run through Compress PDF if you're emailing the result
Scanned Pages → Searchable PDF
Standard document scanners produce a stack of images, but most users want a multi-page searchable PDF:
- Scan each page individually (or use ADF for batch scanning)
- Convert all images to PDF with A4 or Letter page size (whichever matches your scan)
- Run OCR on the resulting PDF if you need searchable text. PDFOutfit doesn't include OCR — use Google Drive (upload PDF, right-click → "Open with Google Docs") or Tesseract for offline OCR.
Screenshots → Bug Report PDF
Developers and QA testers often need to bundle screenshots into a single document:
- Take screenshots in order; name them so they sort by timestamp
- Drag all into the tool; verify the order in the preview
- Use "Fit to Image" to preserve native screenshot dimensions
- Add a watermark with the build version using Add Watermark
Mixed Content (Photos + Documents) → Unified PDF
For combining photos and documents into a single submission (e.g., insurance claims, expense reports):
- Convert photos to PDF with this tool
- Open any documents you have as PDFs (or use Convert to PDF)
- Use Combine Files to merge everything into one PDF in your preferred order
- Add chapter pages between sections (Combine Files supports this) for organization
When NOT to Convert Images to PDF
Sometimes PDF isn't the right destination format. Common cases where you should keep images as images:
If the recipient needs to edit individual photos
PDFs are great for distribution but awkward for editing. If the recipient will retouch, crop, or recolor specific images, send them as a ZIP of original images instead.
If you're sharing for social media or web
Instagram, Twitter, Slack, iMessage all render images inline but treat PDFs as attachments. For single-image sharing on these platforms, keep the JPG/PNG. Convert to PDF only when you need multi-page collections.
If the platform has a PDF size limit
Some legal e-filing systems, insurance portals, and submission forms cap PDF size at 5-10 MB. Photo-heavy PDFs can easily exceed this. Test the file size before committing to the workflow.
If you need transparency to be preserved
PNG images with transparent backgrounds will get a solid (usually white) background in PDF format. For design assets, keep them as PNG and share separately.
Frequently Asked Questions
Is Images to PDF free?
Yes. Guest users get 2 free uses per day. Free accounts (email signup, no credit card) get 5 daily. Pro subscribers get unlimited access to all 18 PDF tools.
What image formats are supported?
JPG/JPEG and PNG. HEIC, TIFF, RAW, and other formats aren't currently supported—convert them to JPG or PNG first.
Is there a limit on how many images I can combine?
There's no hard limit on image count, but the total file size is capped at 10MB.
Will my images lose quality?
No. Images are embedded into the PDF without lossy recompression. The quality you put in is the quality you get out.
Can I change the order of images?
Yes, before creating the PDF. Drag the image thumbnails to arrange them in any order you want.
Is my file sent to a server?
No. All processing happens locally in your browser. Your images never leave your device.
What's the difference between 'Fit to Image' and A4/Letter?
'Fit to Image' makes each PDF page exactly match its source image dimensions. A4 and Letter are standard paper sizes that add margins around non-matching images.
Can I add images to an existing PDF?
This tool creates new PDFs from images. To add images to an existing PDF, first convert your images to PDF with this tool, then use Merge PDF to combine them.
How do I convert HEIC photos from iPhone?
HEIC isn't directly supported. On a Mac: open the photo in Preview and export as JPG. On iPhone: Settings → Camera → Formats → Most Compatible to save as JPG going forward, or share photos via 'Save to Files' which auto-converts to JPG. Then import the JPGs into this tool.
How do I make the resulting PDF searchable?
PDFOutfit doesn't include OCR (optical character recognition). After converting images to PDF, run the file through an OCR service: Google Drive (upload PDF, right-click → 'Open with Google Docs'), Adobe Acrobat Pro's OCR feature, or Tesseract for offline processing. OCR adds an invisible text layer to make the image PDF searchable.
Why is my output PDF so much larger than the source images?
It shouldn't be — PDFOutfit doesn't add significant overhead. If your PDF is dramatically larger than the sum of source image sizes, you may be embedding the images at higher resolution than needed. Try compressing the source images first (TinyPNG, Squoosh) or run the output PDF through Compress PDF.
Can I add a watermark or page numbers to the resulting PDF?
Yes — after creating the PDF, run it through Add Watermark or Add Page Numbers. Both tools work on any PDF including ones generated from images.
Will scanned text in my images be searchable in the PDF?
Not by default. The images are embedded as visual content with no text layer. To make scanned text searchable, run OCR on the output PDF (Google Drive's free OCR works well). The result is an image PDF with an invisible text layer underneath each page.
Can I create a multi-page PDF from a single very long screenshot?
This tool puts each input image on its own page. For a long screenshot (like a full-page web capture), you'd need to manually split it into multiple images first, or convert it as a single page with 'Fit to Image' which preserves aspect ratio. Some users prefer the single-page approach for full-page screenshots; others split for readability.
How do I preserve transparency from PNG images?
PDF doesn't preserve transparency the same way PNG does. Transparent PNGs will get a solid (usually white) background when embedded in the PDF. If transparency matters for your use case (design assets, overlays), keep them as PNG and share separately rather than converting to PDF.