No uploads. No watermarks. No quality loss. Drop in your PNG screenshots, UI mockups, or design exports and download a single pixel-perfect PDF — transparent backgrounds rendered as clean white, every pixel preserved.
Filoraio runs the merge directly inside your browser using a small WebAssembly engine. Nothing is uploaded, nothing is queued, and you can verify it yourself — open your browser’s DevTools, switch to the Network tab, and watch it stay quiet.
They’re read into your browser’s memory through a standard file picker.
The merge runs locally — no request leaves your device while it processes.
The combined PDF lands in your downloads folder, the same way any other download would.
No upload bar, no progress spinner waiting on a server. Works offline once the page is loaded.
From drop to download takes seconds — designed for screenshot bundles, design-tool exports, and any case where pixel fidelity matters more than file size.
Use your OS's screenshot shortcut, your design tool's export, or any source that produces PNG. Filoraio embeds the bytes verbatim, so the output PDF is only as sharp as the source — capture at full resolution if you can.
Drag PNG files onto the drop zone, or click to pick. Each one becomes a numbered card with a live preview, so you can confirm the right images are queued in the right order.
Pick Match image when you want 1:1 page dimensions (the right default for screenshots). Pick A4 or Letter when you want a printable page — pair with Auto orientation so landscape and portrait captures each get the right page shape.
Press Convert. The PDF is built locally on your device using the embed-image step — no upload, no resampling, no quality loss. Save it anywhere.
If you work with screenshots, design tools, or anything where pixels need to stay sharp, this is the converter that doesn't quietly degrade your work behind the scenes.
Bundle code-editor screenshots, error stacks, and DevTools captures into a single PDF for a bug report or architecture review.
Export Figma frames as PNG, drop them in capture order, and hand off a clickthrough PDF to engineering or stakeholders in one file.
Stitch screenshots of every step in a user flow into one PDF walkthrough — annotations and pixel-level detail preserved exactly as captured.
Turn a long thread of screenshot replies into a single PDF case file the customer or internal team can save and reference offline.
Combine annotated UI screenshots into a single PDF tutorial — sharp at any zoom level, no JPEG halos around text or icons.
Bundle dashboard screenshots, chart exports, and annotated diagrams into one PDF for a report or peer-review submission.
Four quick walkthroughs of the exact reasons people search for a way to turn PNG images into a single PDF.
You've exported eight Figma frames as PNG. Drop them into the picker in screen order, pick Match image so the PDF page mirrors the design canvas exactly, and you have a shareable clickthrough PDF for the design review.
You captured five steps to reproduce a bug, annotated each one with a markup tool, and need to attach them to a Jira ticket. Drop the annotated PNGs in capture order, Match image keeps every pixel of your arrows and circles sharp, and you have one PDF instead of five attachments.
You exported syntax-highlighted screenshots of a code review. Drop them in, pick A4 if you'll print, or Match image for a digital-only handoff. The PNG embedding keeps the monospaced text crisp at any zoom level — JPG would soften the edges.
You exported architecture diagrams from Excalidraw / Whimsical / Lucidchart as PNG. Drop them in, Match image to preserve the canvas dimensions, and you have a single PDF for the doc site or the design folder.
Four small habits that keep the output as sharp as the source — especially when you're working with retina screenshots or design-tool exports.
PNG embeds the bytes verbatim, so the PDF is only as sharp as the source capture. On macOS, Cmd-Shift-4 captures at the screen's native (usually retina) resolution; in Figma, export at 2× or 3× scale. Higher capture = sharper PDF zoom.
Screenshots and design exports already have meaningful aspect ratios — usually 16:9, 4:3, or the canvas dimensions. Forcing them onto A4 or Letter adds whitespace and shrinks the content. Match image preserves the design dimensions exactly.
PDF doesn't have a native concept of "transparent page background". Filoraio renders PNG transparency as flat white — the same way most PDF viewers display the page. If you need transparency preserved through the export (rare), keep the file as PNG instead.
PNG is lossless, which is why screenshots look crisp through it. The cost is file size — a PDF of 20 PNG screenshots is often 5–10× larger than the same set as JPG. If sharing via email and size matters, run the final PDF through our Compress PDF tool.
Side by side with the average online PNG-to-PDF converter — including the ones with millions of monthly users.
| Feature | Filoraio | Typical online PDF tools |
|---|---|---|
| Where files are processed | On your device | Uploaded to servers |
| PNG compression | None — bytes embedded as-is | Often re-encoded as JPG |
| Transparency handling | Clean flat-white background | Often visible artifacting |
| Watermark on output | None | Often added on free tier |
| Account required | No | Often required for batches |
| File size / batch limit | None — your device's RAM | Usually 25 MB / 20 images |
Quick answers to the things people ask most often before using this tool.
Yes. Filoraio embeds the original PNG bytes into the PDF via the embed-image step — no recompression, no resampling, no conversion to JPG. Zoom into the resulting PDF and the pixels are identical to the source PNG.
Transparency is flattened to flat white in the PDF. PDF as a format doesn't have a true "transparent page" concept — the white background is how every PDF viewer renders pages by default. If you need true transparency preserved through the export, keep the source as PNG instead of converting.
No. The conversion runs entirely in your browser using a small WebAssembly library. Your PNGs are read, embedded, and saved as a PDF without ever leaving the tab — important when you're handling unreleased designs, internal mockups, or anything else confidential.
Export the frames you want as PNG (Figma → Export → PNG, 2× or 3× scale for retina output), drop the resulting files onto the picker here in screen order, and pick Match image for 1:1 canvas dimensions. The result is a single PDF that mirrors your Figma flow exactly.
Yes — the PDF is only as sharp as the source PNG you provided, with no quality loss in between. If you captured at 1× resolution, the PDF will pixelate when zoomed; if you captured at 2× or 3× (retina), it stays crisp at any zoom level.
Capture at the highest resolution available. On macOS, the default Cmd-Shift-4 captures at retina resolution automatically. On Windows, Snipping Tool captures at display resolution — for sharper results, use a tool like ShareX that can capture at 2×. In design tools, set the export scale to 2× or 3×.
Because PNG is lossless. A 20-screenshot PDF made from PNGs is often 5–10× larger than the same content from JPGs, but the PNG version stays sharp at any zoom level while the JPG version shows soft edges around text and UI elements. If size matters, run the output through our Compress PDF tool.
Yes — the picker on this page accepts both formats. The PDF will preserve each input's quality (PNGs stay lossless, JPGs stay as JPGs). If you're mostly working with JPG photos rather than PNG screenshots, our dedicated JPG to PDF tool has tips and FAQs tuned for that workflow.
Yes. The four options are Match image (PDF page = PNG dimensions exactly — the right default for screenshots and design exports), A4 (international standard), US Letter, and Legal. For non-Match-image sizes, the screenshot is scaled to fit within the page margins.
It makes each PDF page exactly the same dimensions as the source PNG — no whitespace, no margins, no scaling. A 1920×1080 screenshot becomes a 1920×1080-point PDF page. This is the right default for any case where the screenshot's framing matters and you don't want letterboxing.
Yes — use Auto orientation (or Match image, which is even better). Auto picks portrait or landscape per image based on aspect ratio, so a batch of mixed screenshots ends up with each one on a correctly-shaped page rather than letterboxed onto a forced orientation.
Up to 100 PNG files per batch in the picker. There's no hard cap on the output PDF size — the practical limit is your device's available memory. For batches over 100, split into two passes and combine the resulting PDFs with our Merge tool.
That's a known PNG-on-white compositing quirk — happens when the source PNG has anti-aliased edges colored for a non-white background. Re-export the PNG against a white background in your design tool, and the fringe goes away in the PDF.
Yes. The tool runs in any modern browser — Chrome, Firefox, and Edge on Linux are all tested; Chromebooks work the same way. The PDF generates locally and downloads via the browser's standard save dialog, no extra software required.
Tools picked because they pair naturally with the one above — the next step in a typical PDF workflow.