Image to PDF Converter
Convert images to PDF — supports JPG, PNG, WebP, GIF, BMP. Free, private, runs in your browser.
What Is an Image to PDF Converter?
An image to PDF converter takes one or more images in any format — JPG, PNG, WebP, GIF, or BMP — and combines them into a single PDF document. Each image becomes one page, with options for page sizing, orientation, and margins.
TweakFiles converts images to PDF entirely in your browser using pdf-lib. Your images are never uploaded to any server. This makes it faster than server-based tools and completely private, even for sensitive documents like financial records, medical images, or personal photos.
When Should You Convert Images to PDF?
Converting images to PDF is essential when you need to combine multiple images into a single organized document. PDFs preserve page order, can be viewed consistently across all devices, and are the standard format for document submission.
It is particularly useful for digitized documents — when you have scanned pages with your phone camera, you get individual images that need to be combined into a proper document format for filing, submission, or sharing.
Common Use Cases
- Combine scanned pages or receipts into a single document
- Create photo albums or portfolios as PDF documents
- Prepare multi-page submissions for government or legal forms
- Convert phone camera scans into proper document format
- Bundle screenshots or product images for reports
- Archive photos in a universally compatible document format
Supported Formats
TweakFiles accepts JPG/JPEG, PNG, WebP, GIF, and BMP images. JPG and PNG are embedded directly without re-encoding, preserving original quality. WebP, GIF, and BMP are converted through the Canvas API before embedding. Each page can be sized to match the image (Fit to Image), or you can choose standard A4 or Letter page sizes with configurable margins.
How to Convert Images to PDF in 3 Steps
Upload Images
Drag and drop your images into the drop zone above, or click to browse. You can select multiple files at once. Supports JPG, PNG, WebP, GIF, and BMP formats.
Configure & Arrange
Choose your page size (A4, Letter, or Fit to Image), orientation, and margin size. Use the arrow buttons to reorder images in the list.
Download PDF
Click Convert to PDF and TweakFiles will create a PDF with each image on its own page. The download starts automatically.
TweakFiles vs Other Image to PDF Converters
See how TweakFiles compares to popular image to PDF tools.
| Feature | TweakFiles | iLovePDF | Smallpdf | Adobe Acrobat |
|---|---|---|---|---|
| Price | Free forever | Free (limited) | $9/mo | $19.99/mo |
| File Privacy | 100% client-side | Uploaded to servers | Uploaded to servers | Uploaded to servers |
| Image Formats | JPG, PNG, WebP, GIF, BMP | JPG, PNG | JPG, PNG | JPG, PNG, TIFF |
| Page Size Options | A4, Letter, Fit | A4, Letter | A4, Letter | A4, Letter, Custom |
| Margin Control | None / Small / Medium | No | No | Yes |
| Reorder Pages | Yes | Yes | Yes | Yes |
| Signup Required | No | No (limited) | Yes | Yes |
Comparison based on free tiers as of March 2026.