Image to PDF Converter — Combine JPG/PNG/WEBP into a Single, Print-Ready PDF
Convert multiple images into a polished PDF in your browser. With Toolybird’s Image to PDF Converter you can set page size (A4, Letter, Legal, A5, A3), choose portrait or landscape, control margins, pick image fit (fill, fit, stretch, or original), preview the result, and download instantly—no sign-ups and no watermarks.
What is the Image to PDF Converter?
The Image to PDF Converter turns one or more images into a clean, multi-page PDF—ideal for sharing, printing, archiving, or submitting presentations and assignments. Everything runs locally in your browser for speed and privacy, so your files stay on your device while you work. Upload JPG, PNG, WEBP, or other common image formats, adjust layout controls to match your target paper size, and export a print-ready PDF with a single click. Toolybird’s UI mirrors how people actually work: select images, review a concise list, tweak settings, see progress, preview the PDF, and download.
Key Features
- Multiple images: combine several files into a single PDF, one image per page.
- Page sizes: choose A4, Letter, Legal, A5, or A3 to match your printer or region.
- Orientation: switch between Portrait and Landscape per export.
- Image fit modes: Fill, Fit, Stretch, or Original Size for precise layout control.
- Quality presets: High (300 DPI), Medium (150 DPI), or Low (72 DPI) for size vs. clarity.
- Margins slider: add uniform padding in millimeters for better print results.
- Progress & status: a live progress bar with per-image updates.
- Instant preview: an embedded PDF viewer to verify the output before you download.
- Privacy-first: processed in the browser; Toolybird doesn’t permanently store your files.
Format, Sizing, and When Each Option Helps
Picking the right combination of paper size, orientation, fit mode, and DPI makes your PDF look professional. A-series paper sizes (like A4 and A3) follow the ISO 216 standard used worldwide, while Letter and Legal are common in North America. For sharp print results, DPI (dots per inch) matters—a higher DPI improves detail but increases file size; learn more about DPI fundamentals on Wikipedia.
- Fit: preserves aspect ratio and ensures the full image is visible with possible borders.
- Fill: edge-to-edge coverage with cropping if the aspect ratio doesn’t match the page.
- Stretch: forces the image to fill the page—use sparingly to avoid distortion.
- Original Size: places the image at its native pixel-to-mm scale; great for scans or exact measurements.
How to Use the Converter
- Add images: click Select Images or drag & drop files into the dropzone. The “Selected Images” list confirms what’s queued.
- Name your PDF: set a file name (e.g., portfolio or meeting-notes).
- Choose page size & orientation: pick A4, Letter, Legal, A5, or A3 and select Portrait or Landscape.
- Pick image fit: choose Fit for full visibility, Fill for edge-to-edge, Stretch for exact coverage, or Original Size for 1:1 placement.
- Set quality: High (300 DPI) for print, Medium (150 DPI) for general use, Low (72 DPI) for small files.
- Adjust margins: slide in millimeters to add breathing room for printers and binders.
- Convert: press Convert to PDF, watch the progress bar, and let Toolybird build the document.
- Preview & download: verify the result in the embedded viewer, then click Download. Use New Conversion to start again.
Best Practices for Print-Ready PDFs
- Match the region: choose A4 for ISO markets and Letter/Legal for North America to prevent printer scaling.
- Use 300 DPI for final print: especially for photography or detailed scans; drop to 150 DPI for smaller, email-friendly files.
- Keep text crisp: screenshots and UI elements render best from high-resolution originals—avoid upscaling tiny images.
- Mind margins: some printers cannot print edge-to-edge—add a few millimeters to avoid cut-offs.
- Pick the right format: PNG for sharp graphics, JPG/WEBP for photos; see MDN’s image types guide.
Popular Use Cases
- Education: compile whiteboard photos or assignments into a single submission-ready PDF.
- Business: convert product snapshots and receipts into a tidy report for accounting.
- Design & UX: export mockups and screen flows with consistent page framing.
- Legal & compliance: bundle stamped images or evidence photos into a sequential record.
- Personal archiving: scan family photos or manuals and store them in compact PDFs.
Privacy and Accessibility
Toolybird processes your images in the browser; nothing is uploaded for server-side conversion during the workflow. This makes the converter fast and privacy-friendly for sensitive documents. The interface is keyboard-friendly and responsive, with clear focus states and high-contrast labels. If you rely on a particular accessibility setting, your system’s zoom and contrast tools should work seamlessly with the article and the app UI.
Related Tools You Might Like
Frequently Asked Questions
Which page size should I use? Choose A4 for most countries following the ISO standard and Letter/Legal for North America. See ISO 216 and the Letter size pages for exact dimensions.
What does DPI change? DPI affects how finely images render on the page. Higher DPI (e.g., 300) gives sharper prints at the cost of bigger files; details at Dots per inch.
Do images keep transparency? The PDF page itself is opaque, but PNG and WEBP transparency is respected when composited onto the page; use a margin or “Fit” if you need visible edges.
Can I control the order of pages? Yes—images are added in the order you select them. Add files in sequence to match your desired page flow.
What is “Stretch” for? “Stretch” forces the image to fill the page; it can distort aspect ratios, so use it only when exact coverage is required.
Is there a file size limit? Very large images can produce heavy PDFs. Use the Medium (150 DPI) preset for a balanced result or reduce image dimensions beforehand.