4 回答2025-05-22 21:21:21
Editing PDFs can seem daunting, but with the right tools, it's surprisingly straightforward. For text, I rely on 'Adobe Acrobat Pro'—it lets you edit directly as if it were a Word doc, with options to tweak fonts, colors, and alignment. For images, its 'Edit PDF' tool allows resizing, cropping, or replacing visuals seamlessly.
If you're budget-conscious, free alternatives like 'PDFescape' or 'Sejda' offer solid basic editing. For collaborative work, 'Foxit PhantomPDF' is my go-to for real-time annotations. Just remember to save a backup; edits can sometimes alter formatting unpredictably. For bulk edits, scripts in 'PDFtk Builder' automate repetitive tasks—perfect for large projects.
3 回答2025-09-04 05:41:24
If you've ever wrestled with a CHM that looks gorgeous in its viewer but turns into a mangled, image-free mess when printed, I feel you — I've done the conversion dance more times than I'd like to admit. My go-to, most reliable way is to decompile the CHM first and then rebuild into PDF, because that preserves folder structure, image files, and relative links.
On Windows, open a Command Prompt and run: hh.exe -decompile output_folder yourfile.chm. That extracts all the HTML, images, CSS and TOC into a folder. If you don't have hh.exe handy, 7-Zip also works: 7z x yourfile.chm -ooutput_folder. On Linux/macOS, use chmlib tools like extract_chmLib or the chmextract script to get the same result. Once everything's out, check the output folder — if you can open the main index HTML in a browser and see images, you're good.
From there you have options. For a quick GUI route, load the main HTML into a browser and use Print → Save as PDF (or print to 'Microsoft Print to PDF'). For better control and a true single-file PDF, use wkhtmltopdf: wkhtmltopdf --enable-local-file-access path/to/index.html output.pdf (that flag keeps local images working). If you prefer an ebook tool, Calibre's CLI ebook-convert input_folder/index.html output.pdf often handles images well and offers DPI/page-size settings. Tweak DPI, margins, and CSS if images are scaling weirdly. Small tip: if your CHM had images referenced via weird MSIT paths, decompiling usually fixes that. I usually run a quick scan for missing src= links before finalizing the PDF, and if a few images are off, re-link them or use a local CSS override. Happy converting — it’s oddly satisfying to go from a locked CHM to a neat, searchable PDF you can keep forever.
4 回答2025-08-12 23:24:02
Redacting text and images from a PDF online is a task I’ve had to do frequently, especially when sharing sensitive documents. My go-to tool is 'Adobe Acrobat Online,' which offers a straightforward redaction feature. You upload the PDF, highlight the text or areas you want to redact, and apply the changes permanently. It’s secure and ensures the redacted content can’t be recovered. Another reliable option is 'Smallpdf,' which has a dedicated redaction tool. It’s user-friendly and doesn’t require any software installation.
For those who need more advanced features, 'PDFescape' allows you to redact text and images while also offering password protection for added security. I’ve found it particularly useful for legal documents. Always remember to download the redacted version and double-check it before sharing. Some tools like 'iLovePDF' also let you batch redact multiple files, which is a lifesaver for large projects. The key is to choose a tool that balances ease of use with robust security measures.
4 回答2025-05-23 00:36:36
As someone who spends a lot of time digging into anime and manga, I can tell you that finding anime adaptations with PDFs for images isn’t super common, but there are some niche options. Many official artbooks or companion books for popular series like 'Attack on Titan' or 'Demon Slayer' are sometimes released in PDF format, especially if they’re digital exclusives. These often include key frames, character designs, and background art.
Fan communities also occasionally compile screencaps or promotional materials into PDFs for archival purposes, though these aren’t always legal. For example, I’ve seen fans create PDFs of 'Your Name' backgrounds or 'Spirited Away' concept art. If you’re looking for something specific, checking official publisher sites or digital stores like BookWalker might yield results. Just be mindful of copyright issues—official releases are always the best bet.
4 回答2025-05-23 04:54:22
As someone who loves collecting digital art and book-related media, I can share that many bestselling novels do have official PDFs for images, but it largely depends on the publisher and the specific book. For instance, fantasy series like 'The Lord of the Rings' or 'Game of Thrones' often release companion art books or official PDFs featuring maps, character designs, and cover art. These are usually available on the publishers' websites or through authorized retailers.
Some authors, like Brandon Sanderson, even provide free downloadable content for fans, including illustrations from their books. However, for most mainstream novels, especially contemporary ones, official image PDFs are rarer unless they are part of a special edition or promotional material. It’s always worth checking the author’s official site or the publisher’s social media for such resources. If you’re into manga or light novels, they often include bonus art PDFs with special editions, which are a treasure trove for fans.
2 回答2025-06-03 20:08:07
Redacting images in a PDF securely isn't just about slapping a black box over them—it’s about ensuring the data is gone for good. I learned this the hard way when I accidentally left metadata in a document I thought was clean. Tools like Adobe Acrobat Pro have a proper redaction feature that permanently removes the content, not just hides it. You have to select the image, apply the redaction, and then save the file. But here’s the kicker: if you don’t 'flatten' the PDF afterward, someone can still dig into the layers and uncover what you tried to hide.
For extra security, I always recommend converting the PDF to another format like TIFF or JPEG after redaction. This destroys any hidden data layers. Open-source tools like PDFRedact can also scrub metadata, but they require a bit more technical know-how. Never rely on simple annotation tools—those markings can be removed with a click. The golden rule? Treat redaction like a surgical operation: precise, thorough, and double-checked.
3 回答2025-07-04 06:02:59
I've been converting files for years, and PDF to EPUB with images intact can be tricky but totally doable. My go-to tool is Calibre—it’s free and super reliable. After installing, just drag your PDF into Calibre, right-click to convert, and choose EPUB as the output format. Make sure to tick the 'keep cover' and 'insert metadata' options under EPUB output settings. Sometimes, images might get jumbled, so I tweak the 'Heuristic Processing' option to 'Enable' for better layout retention. If Calibre struggles, I use a combo of 'PDFelement' to extract images first, then manually insert them into the EPUB using Sigil, a free EPUB editor. It’s a bit manual, but worth it for perfect results.
4 回答2025-09-03 01:21:21
When I need to rip images out of a tricky PDF I usually start with the simplest, most faithful route: grab the embedded images rather than re-rendering pages. On Linux or macOS that means pdfimages (from Poppler) is my go-to: pdfimages -all file.pdf imgprefix will pull out the original XObject images in their native formats (JPEG, JPX, JBIG2, etc.). That keeps resolution and color intact, so you don't lose detail. If you see weird files like imgprefix-000.jpg or imgprefix-000.ppm, that's normal — some images come out as raw bitmaps and need conversion to PNG or JPG afterward.
If pdfimages doesn't do the job (encrypted file, corrupted streams, or strange corporate PDFs), I fall back to mutool extract (from MuPDF) or use PyMuPDF (fitz) in a small Python script to iterate pages and save images with metadata. For scanned documents where each page is a big raster, pdftoppm -r 300 -jpeg file.pdf page will rasterize each page at a chosen DPI. Two extra tips from experience: (1) if the PDF is password-protected you may need qpdf --decrypt first, and (2) check colorspace — ImageMagick convert or pngquant can help convert CMYK to sRGB or shrink files. I like this workflow because it blends command-line speed with fidelity, and I usually end up with a neat folder of original, full-size images ready for further editing.