Turbo Batch PDF Converter

Turbo Batch PDF Converter is a Windows desktop app that does two jobs: it renders the pages of your PDFs into image files, and it compresses oversized PDFs. Both run on a single file or an entire folder, including nested sub-folders, entirely on your own PC, with no uploads and no external software to install. Rendering uses the built-in PyMuPDF engine, so there is no Poppler or Ghostscript to set up, and input is PDF only — it does not create editable Word or Excel files.

The app is organized into two tabs, each with its own independent settings. The PDF to Image tab converts each page of a PDF into a separate JPG, PNG, WEBP, TIFF, BMP or GIF at a DPI you control. The PDF Compression tab rewrites PDFs at one of five levels, from lossless structure cleanup to aggressive image downsampling.

Input is any standard PDF, including multi-page scanned documents, reports and eBooks. On the PDF to Image tab the output is one of six image formats.

Choosing an output format

• PNG — lossless; best for documents, diagrams and anything with crisp text or sharp edges.
• JPG — the fastest to encode and the smallest for photographic pages; ideal for sharing and the web.
• WEBP — lossy or lossless with the best quality-to-size ratio for photos; encodes faster than PNG at comparable quality.
• TIFF — the archival standard, with Raw, Deflate or LZW compression, suited to long-term storage and print handoff.
• BMP — uncompressed, for the occasional tool that requires plain bitmap input.
• GIF — a 256-color palette format, fine for simple graphics and small, widely compatible images.

DPI: from screen preview to print-ready

DPI controls how many pixels each page is rendered into; higher means sharper images and larger files. Choose 72, 96, 120, 150 (the default), 200, 300, 400 or 600. Use 72–120 for screen previews and thumbnails, 150–200 as the everyday sweet spot, 300 for quality printing, and 400–600 for professional and archival print. 600 DPI meets or exceeds what most printers, scanners and archival standards require, and the dropdown does not go higher. DPI multiplies both render time and file size, so pick the lowest setting that meets your quality target.

Format-specific controls

• JPG quality — a 1–100 slider; higher means better quality and larger files.
• PNG compression — a 0–9 slider. PNG stays lossless at every level, so this only trades encode speed for file size.
• WEBP quality and Lossless — a 1–100 slider plus a Lossless switch, which ignores the slider and gives pixel-perfect output at a smaller size than PNG.
• TIF compression — Raw (uncompressed, largest), Deflate or LZW (both lossless). Deflate or LZW at a moderate DPI such as 150–200 is the easiest way to get small scanned-document TIFFs.
• GIF Optimize palette — each page becomes an adaptive 256-color GIF; the switch shrinks the file further.

Each compressed file reports its original size, its new size and the percentage saved in the activity log, so you can confirm the result before deleting the source PDF.

• Pick a tab. PDF to Image renders pages into image files; PDF Compression shrinks PDFs.
• Choose the input. Switch between Batch (Folder) and Single File, then browse or drag and drop. In folder input, Folder processes just that folder and Subfolder walks every nested folder.
• Configure the output. On the image tab choose format, DPI, quality, page range and naming; 150 DPI PNG with a blank page range is a good first run. On the compression tab start with Level 3.
• Click Start. Watch pages done, speed and ETA in the activity panel. Cancel stops the run cleanly if you started the wrong batch.
• Open the results. With Open output when done enabled, the output folder opens when the run finishes.

Once you are comfortable, switch to Batch (Folder), turn on Subfolder scan and point the app at an entire directory tree.

Pages are rendered by a self-contained engine, so there is nothing extra to install and no console windows flashing in the background. Instead of assigning one page per worker, the app splits each PDF into chunks of 20 pages and distributes them across a fixed pool of up to 64 workers. Each worker opens the source document, renders its chunk and closes it independently, which keeps memory use predictable on documents with thousands of pages. Every render and compression pass is an independent task, so workers never interfere with one another.

Every page render, image save and compression pass happens on your own computer. No PDF content is uploaded, scanned remotely or shared with a third-party server.

• No logging, analysis or transmission of your PDF content, and no telemetry, ad trackers or third-party analytics in the conversion engine.
• Internet access is used only for license activation; the request carries no file names or document content.
• Suitable for legal contracts, medical scans, financial statements and air-gapped networks.

Turbo Batch PDF Converter is a one-time purchase through Gumroad, with no subscription. Activate once with your purchase email and license key; after that the app runs locally and only performs a lightweight license check.