Convert JPG, PNG, and WebP images to PDF online for free. Merge multiple images into one PDF with custom page size, orientation, and margins — 100% browser-based, no upload.
Image to PDF Converter is a free, browser-based tool
from UseToolSuite's
Document & PDF Tools collection.
All processing happens locally on your device — your data is never uploaded to any server.
Use the tool below, then scroll down for detailed documentation, frequently asked questions, and related resources.
About Image to PDF Converter
Image to PDF Converter is a free, browser-based tool that combines one or more images into a single, downloadable PDF document — instantly, privately, and without any server upload. Whether you need to merge scanned documents into a single file, compile a photo portfolio, create a multi-page handout from screenshots, or prepare a presentation deck from design mockups, this tool handles it in seconds using the jsPDF library running entirely in your browser. Add multiple JPG, PNG, or WebP images, drag to reorder pages, choose from standard page sizes (A4, Letter, A3, A5, Legal) or auto-fit pages to image dimensions, set orientation (portrait, landscape, or auto-detect per image), control margins, and select how images fit the page (contain, cover, or stretch). The generated PDF is created locally on your device — your images are never uploaded to any server, making this tool completely safe for confidential documents, proprietary photography, legal scans, medical records, and any sensitive material. No account, no watermarks, no file count limits.
How to Convert Images to PDF
- Add images — Drag and drop one or more PNG, JPG, or WebP files onto the upload area, or click to select from your device. You can add more images at any time with the "Add More" button.
- Arrange page order — Drag image cards up or down to set the exact page order in the final PDF. Each image becomes one page.
- Configure page settings — Choose page size (A4, Letter, etc.), orientation (auto, portrait, landscape), image fit mode (contain, cover, stretch), and margin size.
- Set PDF title — Optionally enter a title that will be embedded in the PDF metadata, visible in PDF readers and file properties.
- Generate — Click "Generate PDF" and watch the progress bar as each image is processed. Large files may take a few seconds.
- Download — Once generation completes, review the page count and file size, then download the PDF.
Page Size and Orientation Guide
A4 (210 × 297 mm): The international standard for documents, reports, and letters. Used globally except in the US and Canada. Letter (8.5 × 11 in / 215.9 × 279.4 mm): Standard US/Canada paper size for business documents. A3 (297 × 420 mm): Double the size of A4 — ideal for posters, large diagrams, and architectural prints. A5 (148 × 210 mm): Half the size of A4 — used for booklets, flyers, and pocket-sized documents. Legal (8.5 × 14 in): US legal documents, contracts, and government forms. Fit to Image: Creates each page at the exact dimensions of its image — perfect for photo portfolios where you want zero margins and no white space. The Auto orientation setting detects whether each image is landscape or portrait and rotates the page accordingly, which is ideal for mixed-orientation photo collections.
Common Use Cases
- Combine scanned receipts, invoices, or contracts into a single PDF for email or filing
- Create photo albums or portfolios from a collection of JPEG or PNG images
- Convert screenshots of web pages or app interfaces into a multi-page documentation PDF
- Prepare image-based presentations or handouts for printing
- Merge whiteboard photos from meetings into one shareable document
- Compile evidence screenshots for legal, insurance, or compliance documentation
- Convert manga, comic, or book scans into a single readable PDF file
- Create PDF lookbooks from product photography for wholesale buyers
What is the Image to PDF Converter?
The Image to PDF Converter is a secure, client-side utility built for developers and everyday users to seamlessly compile single or multiple images into a unified PDF document. Designed with privacy as a core principle, it executes entirely in your browser using efficient libraries like pdf-lib. This means your personal photos, sensitive design mockups, and confidential scanned documents are processed locally without ever being uploaded to a remote server. It provides developers with a reliable, offline-capable solution for document generation while maintaining absolute control over the data pipeline.
How does it work?
Leveraging HTML5 File APIs and client-side PDF generation libraries, the tool reads your uploaded images directly into the browser's memory. It then creates a new PDF document structure, scales the images to fit standard page dimensions, and embeds them into the document pages. Because there is no backend server involved, the conversion is instantaneous and completely private.
Common use cases
Common use cases include compiling scanned physical documents or receipts into a single PDF for expense reporting or archiving, designers creating quick portfolio presentations from exported UI/UX design mockups, and developers building offline-first applications that require local image-to-document conversion features.
From loose photos to one shareable document
Scanning with a phone produces a pile of individual JPGs; a PDF turns that pile into a document. The conversion does three useful things at once: it fixes a reading order, it sets a consistent page size so the recipient isn’t zooming in and out, and it wraps everything in a format that prints reliably. This is why expense reports, visa applications, and rental paperwork are almost always requested as “a single PDF” rather than attached images.
Page sizing is the decision that most affects the result. A4 or Letter suits documents that will be printed; sizing the page to the image suits screenshots and photos meant for on-screen reading. Margins matter too — a small margin keeps content away from the edge where home printers clip, while a zero margin is right for full-bleed photos.
Order, orientation, and quality before you export
Three checks prevent the usual re-do:
- Order — drag thumbnails into reading sequence; page 1 of a contract should not land behind page 3.
- Orientation — rotate sideways phone scans to portrait so the recipient doesn’t tilt their head; mixing orientations in one PDF is fine when the content calls for it.
- Compression — high-resolution camera images can balloon a PDF to tens of megabytes. If the file will be emailed, a moderate JPEG quality keeps it under common 10–25 MB attachment limits without visibly degrading text.
Because the conversion runs entirely in your browser, sensitive scans — passports, bank statements, medical forms — never touch a server. That is the practical difference between a privacy policy and a privacy guarantee: there is no upload to intercept, log, or retain.
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