Is this PDF signer really free?

Yes. 100% free forever — no trial, no premium tier, no per-signature charge, no daily quota. Sign as many PDFs as you want. Ad-supported so it stays free for everyone. Unlike Adobe Acrobat (which gates cryptographic signatures behind a $15/mo subscription), Smallpdf (2 signatures / day free), and iLovePDF (free tier limited) — we give you everything on the free tier.

Do I need an account?

No. No signup, no login, no email, no captcha, no credit card. Open the page, drop your PDF, sign, download.

Is my PDF uploaded to a server?

No. The entire signing happens locally in your browser using the Web Crypto API for RSA keypair generation and PKCS#7 / CMS packaging. Your PDF never leaves your device — there is no server-side copy because we don't have a server for your files.

Is my signature or private key sent anywhere?

No. Your signature image, drawing, or typed name stays in browser memory. If you upload a .p12 / .pfx certificate, it's parsed locally — never transmitted. The generated private key for self-signed certs lives in Web Crypto's non-extractable storage and is discarded when you close the tab.

What's the difference between an electronic signature and a digital signature?

An electronic signature is any visible mark placed on a document — a drawn scribble, a typed name, a photo of a handwritten signature. It looks like a signature but has no cryptographic proof. A digital signature is a cryptographic operation: the document's content is hashed (SHA-256), the hash is encrypted with your private key (RSA-2048), and the result is embedded in a PKCS#7 / CMS structure inside the PDF. Anyone can verify two things from that: (a) the document hasn't been modified since signing, and (b) it was signed by the holder of the corresponding private key. Most legal jurisdictions (EU eIDAS, US ESIGN, most of Asia) recognise digital signatures as legally equivalent to wet-ink signatures; electronic-only signatures sit on weaker footing. Our tool does both — visible AND cryptographic — in a single signing pass, which is what Adobe Acrobat Pro also does, but for free.

How do I sign a PDF for free?

Drop your PDF on the page above. The editor opens with the Certify modal pre-selected. Choose draw / type / upload for a visible signature, then click the page where it should go. Click Save — the PDF is cryptographically signed with your in-browser-generated certificate and downloads. Entirely free, entirely local, no signup. Most competitors gate either the crypto or the no-watermark output; we don't.

How do I add a signature to a PDF?

Same flow. Drop PDF, pick how to produce the signature (draw / type / upload a PNG or JPG of your signature), place it by clicking the page. Our visible signature renders at the exact pixel position you click, with the size you drag to, so it lines up with the signature line on contracts, NDAs, tax forms, etc.

Are PDF signatures legally binding?

In most jurisdictions, yes, with nuance. The EU's eIDAS regulation recognises three tiers: Simple Electronic Signature (SES — e.g. a typed name, accepted but weaker), Advanced Electronic Signature (AES — uniquely identifies the signer, our cryptographic output qualifies), and Qualified Electronic Signature (QES — requires a trust-service-provider-issued certificate, not produced by our tool). The US ESIGN Act (2000) and UETA treat most electronic signatures as legally equivalent to wet-ink. High-stakes contexts (notarised deeds, some courts) may require QES or physical signatures — consult a lawyer if the stakes warrant it. For everyday business use (contracts, NDAs, HR forms, vendor agreements), our cryptographic output is usually sufficient.

What is PKCS#7 / CMS?

PKCS#7 (Public Key Cryptography Standards #7), also known as CMS (Cryptographic Message Syntax), is the standard encoding for digitally signed data that every major PDF viewer understands. When you sign a PDF through our tool, we compute a SHA-256 hash of the document's byte range, encrypt the hash with your RSA-2048 private key, and package the result along with your certificate into a PKCS#7 structure. That blob is embedded inside the PDF's /Sig field. Adobe, Chrome, Edge, Foxit, and macOS Preview all read PKCS#7 signatures natively and show a verification badge — the exact same mechanism Adobe Acrobat Pro and DocuSign use.

Do the signed PDFs work in Adobe Acrobat?

Yes. Our PKCS#7 output is standards-compliant — we tested against Adobe Acrobat Reader DC, Adobe Acrobat Pro, Chrome's built-in PDF viewer, Edge, Firefox's PDF.js, macOS Preview, and Foxit Reader. All show a verification badge. For self-signed certificates (generated in-browser), Adobe shows yellow 'signer unknown' warning — this is the correct behaviour, because self-signed certs have no third-party trust anchor. To get a green badge, upload a .p12 from a trusted Certificate Authority (Digicert, Sectigo, GlobalSign, your organisation's internal PKI).

How do I sign a PDF with a .p12 / .pfx certificate?

In the Certify modal, click 'Use existing certificate'. Upload your .p12 or .pfx file, enter the password if it has one. The certificate is parsed locally — both the public and private key stay in browser memory and are used only for this signing pass. The signed PDF carries your real identity (issuer, subject, validity dates) which any verifier can check against the issuing CA's root store.

What if I just want a visible signature without the crypto?

Pick the 'Visible only' option in the Certify modal. You get a PDF with your drawn / typed / uploaded signature placed on the page — no cryptographic structure, no PKCS#7 embedding. This is equivalent to what iLovePDF and Smallpdf produce on their free tiers. It's legally weaker (just an electronic signature, not an advanced one) but fine for casual use where the other party doesn't need cryptographic proof.

Can multiple people sign the same PDF?

Yes, sequentially. Sign once and download. The recipient opens the signed PDF in our tool, drops it in, and signs again. PDF's byte-range mechanism supports any number of sequential signatures; each new signature covers a byte range that includes the previous signatures, producing a chain of verifiable signatures. (Concurrent multi-party signing — one PDF sent to five people at once — requires workflow software like DocuSign or Adobe Sign; we're a single-user tool, not a workflow orchestrator.)

Does it work offline?

Yes, once the page has loaded. The signing engine runs entirely in your browser — you can disconnect from the internet and keep signing. Great for sensitive documents (NDAs, medical releases, financial agreements) you'd rather process without any network connection active.

Can I sign a PDF on my phone?

Yes. Open the page on your phone's browser, tap Select PDF, tap Draw and trace your signature with your finger on the touchscreen, tap Save. Works on iPhone Safari, iPad, Android Chrome. Touch signing feels natural on iPad Pro with Apple Pencil — comparable to DocuSign's mobile experience but without the subscription.

Can I sign a password-protected PDF?

If the PDF is owner-locked (opens without a password), yes. If it requires a password to open, unlock it first with our /unlock-pdf tool, then sign. Our unlocker is also 100% local — the password never leaves your device.

What about timestamped signatures (RFC 3161 TSA)?

Timestamped signatures add a trusted-time-server stamp to prove WHEN a document was signed, independent of the signer's system clock. They require a network call to an external TSA (Time Stamping Authority) — which breaks our local-only promise. We don't ship timestamping today. If you need it for legal archival / long-term validation (LTV), our tool isn't the right fit; use Adobe Acrobat Pro or a commercial e-signing service. For 99% of personal and small-business signing, non-timestamped signatures plus the date field we embed are sufficient.

Is this the best free PDF signer?

For privacy-first workflows where you don't want your PDF, signature, or private key to touch a server, and where you want cryptographic signatures on the free tier (not gated behind Adobe's $15/mo), we think so — and we explicitly compare ourselves to Adobe, Smallpdf, iLovePDF, DocuSign, and Sejda below. For cross-party signing workflows (send to 5 people, track who signed), you need DocuSign or Adobe Sign. Pick the tradeoffs that match your actual use case.

Tandha PDF - Gratis, Pribadi, Kriptografi

Tandha sing katon LAN tandha digital kriptografis nyata (PKCS#7) — loro-lorone gratis, lokal, loro-lorone diakoni sacara sah

Drop a PDF and we open it in the editor with the Certify modal pre-selected. Draw your signature with mouse / trackpad / finger, type your name, or upload a signature image. Add reason / location / date fields. Place the visible signature anywhere on the page. We cryptographically sign the output using an in-browser-generated RSA-2048 self-signed certificate (or your own .p12 if you have one). Your PDF, your signature, and your private key never leave your device. No signup, no watermark, no per-signature charge. The only free PDF signer that does real cryptography.

100% Gratis Selawase Ora Butuh Akun 100% Ing Piranti Sampeyan Enkripsi Tingkat Militer

File ora tau ninggalake piranti sampeyan

Enkripsi AES-256

Kita ora bisa ndeleng dokumen sampeyan

Ora perlu sambungan

Selehake PDF sampeyan ing kene

utawa

PDF · Ora ana unggahan — teken & kunci pribadhi tetep ing piranti sampeyan.

Carane mlebu PDF gratis

1. Selehake PDF Panjenengan

Seret PDF menyang zona gulung ing ndhuwur, utawa klik kanggo browsing. Editor mbukak kanthi otomatis nganggo Certify modal sing wis dipilih - ora navigasi liwat menu, ora nggoleki alat teken.

2. Gambar, ketik, utawa upload tandha tangan sampeyan

Modal Certify nawakake telung dalan menyang tandha sing katon: gambar nganggo mouse, trackpad, utawa driji ing layar demek; ketik jeneng sampeyan ing font teken nyata; utawa upload PNG / JPG teken sing wis ana. Kabeh telu ngasilake asil sing katon padha - pilih endi sing paling alami kanggo sampeyan.

3. Tambah alesan, lokasi, lan tanggal

Per spek PDF 2.0, tandha kriptografi nduweni alasan opsional (contone, "Aku penulis"), lokasi (contone. "Berlin, Jerman"), lan kolom tanggal. Verifiers ndeleng iki bebarengan karo status crypto. Kita ngisi tanggal kanthi otomatis; isi ing liyane yen konteks njaluk iku.

4. Selehake teken lan tandha

Klik ing ngendi wae ing kaca kanggo nyelehake persegi panjang teken sing katon. Seret kanggo ngowahi ukuran. Klik Simpen. Kita ngasilake kunci RSA-2048 sing anyar + sertifikat sing ditandatangani dhewe ing browser sampeyan, ngitung hash SHA-256 saka kisaran bait dokumen, ngemas blob data sing ditandatangani PKCS # 7, lan sijine ing PDF. File sing wis ditandatangani langsung diunduh.

Napa Iki minangka Signer PDF Gratis Paling apik

100% lokal - ora ana keterlibatan server

PDF sampeyan, teken sing digambar, sertifikat sing diunggah, kunci pribadi sampeyan - ora ana sing ndemek server. Bandingake: Adobe, Smallpdf, iLovePDF, DocuSign, lan Sejda kabeh upload kabeh. Nalika dokumen kasebut minangka kontrak sing ditandatangani, NDA, bali pajak, utawa rilis medis, sing luwih penting tinimbang ing ngendi wae ing web.

Kriptografi nyata, tingkat gratis

Smallpdf lan iLovePDF menehi tandha sing katon ing undakan gratis - tulisan ing kaca tanpa bukti kriptografi. Iki minangka "tanda tangan elektronik", kanthi sah luwih lemah. We menehi PKCS # 7 / CMS teken digital free , padha standar Adobe Acrobat Pro nggunakake (gated konco langganan $ 15 / mo ana).

Sertifikat sing ditandatangani kanthi cepet

Umume aliran penandatanganan kriptografi mbutuhake sertifikat sing wis diterbitake. Kita ngasilake pasangan tombol RSA-2048 sing anyar lan sertifikat X.509 sing ditandatangani dhewe ing browser sampeyan liwat Web Crypto API - persiyapan nol. Unggah .p12 / .pfx sing ana yen sampeyan pengin kapercayan pihak katelu; Yen ora, sertifikat sing ditandatangani dhewe cukup kanggo panggunaan pribadi lan alur kerja bisnis cilik.

Katon + cryptographic ing siji pass

Umume alat gratis meksa sampeyan milih siji. Kita tumpukan: teken sing digambar katon ing kaca lan PDF nggawa tandha kriptografi sing mbuktekake sapa sing mlebu lan dokumen kasebut durung diowahi. Loro-lorone ing siji nyimpen pass.

Verifikasi otomatis nalika mbukak

Selehake PDF sing ditandatangani lan kita nuduhake spanduk verifikasi - bener / ora sah / penerbit sing ora dipercaya - bebarengan karo rincian sertifikat penandatangan. Saingan biasane mung nuduhake gambar teken; sampeyan kudu njupuk ing iman.

Rantai multi-teken

Mlebu, ngirim menyang counterparty, padha mlebu lan ngirim bali. model byte-range PDF ndhukung nomer teken urutan; saben teken anyar nyakup sing sadurunge, ngasilake rantai sing bisa diverifikasi. Editor kita nangani teken maneh tanpa mbatalake teken sadurunge.

Pancen Gratis, Langgeng

Ora ana uji coba, ora ana tingkat premium, ora ana biaya saben teken. Adobe Acrobat Pro yaiku $ 15 / wulan; DocuSign Personal yaiku $ 15 / mo; Smallpdf Pro yaiku $12/bln. Kabeh mau ngunggah file sampeyan utawa mbutuhake langganan kanggo tandha kriptografi. Kita lagi didhukung iklan lan gratis ing salawas-lawase.

Ora akun, ora email

Miwiti langsung mlebu. Ora ndhaptar, ora njupuk email, ora ana kertu kredit.

Bisa offline

Sawise editor wis dimuat sampeyan bisa medhot saka internet lan terus mlebu. Apik kanggo kontrak sensitif, NDA, lan dokumen finansial pribadi.

Tandha Elektronik vs. Tandha Digital - Apa Sing Sejatine

Tandha elektronik (SES - Simple)

Sembarang tandha sing katon ing dokumen digital: jeneng sing diketik, tulisan sing digambar, teken tinta basah sing dipindai, kothak centhang "Aku setuju". Diakoni sacara sah ing pirang-pirang yurisdiksi kanggo bisnis saben dinten (tingkat EU eIDAS SES, US ESIGN / UETA, Undhang-undhang Komunikasi Elektronik Inggris) nanging luwih gampang kanggo kontes yen sing mlebu nolak mlebu - ora ana bukti kriptografi sing ngasilake tandha kasebut. Mode "mung katon" kita ngasilake iki.

Advanced Electronic Signature (AES)

EU eIDAS regulasi undakan 2. Kudu (a) unik ngenali signer, (b) ing sawijine kontrol signer, (c) ndeteksi post-tandatangan tampering, (d) digawe nggunakake data sing menehi tandha bisa njaga ing sawijine kontrol. Output kriptografi (PKCS#7 liwat SHA-256 karo RSA-2048 lan kunci pribadi sing digawe sacara lokal ing panyimpenan Web Crypto sing ora bisa diekstrak) nyukupi kabeh patang kritéria - sampeyan bisa ngaku status AES kanggo PDF sing ditandatangani ing kene.

Tanda tangan elektronik berkualitas (QES)

EU eIDAS regulasi undakan 3. AES plus sertifikat qualified saka Trust Service Provider (TSP) ing dhaftar dipercaya EU, plus piranti nggawe teken qualified (HSM utawa smartcard). QES sah padha karo tandha tinta udan ing kabeh EU. Kita ora ngasilake QES amarga aliran mung browser ora bisa nyukupi syarat piranti nggawe teken adhedhasar hardware - sampeyan butuh piranti tandha khusus utawa HSM awan. Yen kasus panggunaan sampeyan mbutuhake QES (kontrak notaris, sawetara industri sing diatur), sampeyan butuh Adobe Sign, DocuSign EU Qualified, utawa TSP lokal.

hukum AS (ESIGN / UETA)

Undhang-undhang ESIGN federal AS (2000) lan adopsi UETA negara nganggep umume tandha elektronik minangka sah sing padha karo tinta udan - tanpa skema tingkat EU. Supaya teken bisa dileksanakake: (a) loro pihak kudu setuju kanggo menehi tandha elektronik, (b) teken kudu disengaja, (c) cathetan kudu disimpen. Kabeh iki operasional; output kita ketemu wong. Sawetara jinis dokumen tartamtu diukir (wasiat, masalah kulawarga-hukum, sawetara filing pengadilan) - mriksa negara sampeyan.

PDF Edit vs Adobe, Smallpdf, iLovePDF, DocuSign, Sejda

Fitur	PDF Edit	Adobe	Smallpdf	iLovePDF	DocuSign	Sejda
File diunggah menyang server?	No — 100% local	ya wis	ya wis	ya wis	ya wis	ya wis
Tandha kriptografi ing undakan gratis?	Yes — PKCS#7 / CMS	Dibayar ($15/bln)	Dibayar ($12/bln)	Dibayar	Dibayar ($15/bln)	Dibayar
Tandha sing katon gratis?	Yes	ya wis	2 / dina gratis	Tingkat gratis diwatesi	Dibayar	Tingkat gratis diwatesi
Sertifikasi sing ditandatangani dhewe ing browser?	Yes — auto	Mbutuhake ngimpor	Ora	Ora	Ora	Ora
Upload .p12 / .pfx sampeyan dhewe?	Yes	Ya (dibayar)	Ora	Ora	Ya (dibayar)	Ora
Akun dibutuhake?	Never	Tingkat gratis diwatesi	Email dibutuhake	Tingkat gratis diwatesi	Email dibutuhake	Tingkat gratis diwatesi
Tanda banyu ing output?	No	Ora	Ora	Ora	Ora	Ora
Mlaku offline sawise dimuat?	Yes	Ora	Ora	Ora	Ora	Ora
Verifikasi teken mlebu?	Yes — auto banner	ya wis	Sebagean	Sebagean	ya wis	Sebagean
Biaya taunan kanggo tandha kriptografi?	$0	~$180/yr	~$144/yr	~$80/yr	~$180/yr	~$80/yr

If you need send-to-multiple-people workflow, where one PDF goes to five signers and you track who signed when, DocuSign or Adobe Sign is the right tool. For you signing your own documents — contracts you received, vendor agreements, NDAs, tax forms — we cover the exact same cryptographic capability for free, without uploading anything.

Sapa Tandha PDFs Kaya Iki?

Freelancer nandhatangani kontrak

Klien ngirim SOW utawa retainer. Sampeyan mlebu, crypto-stamp, ngirim bali. Ora ana unggahan menyang DocuSign, ora ana email "uji coba gratis", ora ana langganan Adobe - lan teken kasebut luwih kuat tinimbang tulisan JPG amarga didhukung dening crypto PKCS#7.

HR lan formulir Employment

Surat tawaran, NDA, paket onboarding, W-9, formulir pemotongan pajak. Cukup sensitif yen ngunggah menyang situs tandha gratis acak ora cocog. Mlebu lokal, ngirim maneh liwat email.

Rilis medis lan formulir HIPAA

Wewenang sing ditandatangani kanggo cathetan medis, klaim asuransi, utawa formulir rilis tes. Konten sing dilindhungi HIPAA ngirim ora diunggah menyang server wong liyo. Prakara tandha mung lokal.

Korespondensi hukum

Surat pertunangan, perjanjian penyelesaian, deklarasi, pratelan sumpah. Yen ana hak istimewa, dokumen ngirim ora ninggalake piranti nalika mlebu. Aliran lokal kita njaga.

Perjanjian sewa lan real estate

Kontrak sewa, amandemen sewa, pambocoran properti. Mlebu lan bali tanpa ndhaptar platform tandha liyane. Counterparty entuk PDF sing wis diverifikasi kanthi kriptografi sing bisa dibukak ing panampil apa wae.

Wangun pamaréntah lan pajak

Formulir IRS (W-9, 1099), aplikasi pemerintah, dokumen imigrasi. Akeh agensi nampa PKCS # 7 mlebu PDFs. Penandatanganan lokal ngindhari ngunggah dokumen identitas sing sensitif.

Penulis lan sing duwe hak

Tandhani karya digital kanggo mbuktekake kepenulisan ing wektu tartamtu. Teken PKCS # 7 + timestamp ing PDF sing ditandatangani minangka rekaman asal-usul sing awet, sing dipasang ing kunci pribadi sampeyan.

Resolusi dewan perusahaan

Papan menit, resolusi idin, hibah opsi saham. Dhukungan rantai multi-signer ngidini direktur mlebu kanthi urutan tanpa nerusake PDF liwat awan pihak katelu.

Arsip dokumen jangka panjang

Tandhani PDF penting dina iki kanthi tandha kriptografi sing dicap tanggal. Simpen sacara lokal. Sawise pirang-pirang taun, sapa wae sing duwe file isih bisa verifikasi yen wis ditandatangani dening sing duwe kunci pribadi sampeyan lan durung diowahi. (Kanggo alur kerja validasi jangka panjang resmi kanthi cap wektu sing dipercaya, deleng bagean FAQ ing LTV.)

Tandha PDF ing iPhone, Android, Mac, Windows, lan Chromebook

Penanda PDF kita bisa digunakake ing saben piranti kanthi browser modern - Windows, Mac, Linux, Chromebook, iPad, iPhone, lan Android. Ing iPad Pro nganggo Apple Pencil, nggambar teken sampeyan kaya aplikasi seluler DocuSign, minus langganan lan minus unggahan. Ora nginstal aplikasi, ora ana plugin, ora ana hak admin. Sawise kaca wis dimuat, sampeyan bisa medhot saka internet lan terus mlebu - kabeh lumaku sacara lokal liwat Web Crypto API.

Kepiye Cara Kerja Kriptografi Berbasis Browser PDF?

Nalika sampeyan ngeklik Simpen, kita ngasilake pasangan tombol RSA-2048 anyar ing browser sampeyan nggunakake Web Crypto API (crypto.subtle.generateKey) - kunci pribadi urip ing panyimpenan sing ora bisa diekstrak lan ora bisa diekspor. Kita mbangun sertifikat sing ditandatangani dhewe X.509 kanthi jeneng penandatangan sing dipilih. PDF wis disiapake karo placeholder kosong / Sig nang lapangan / AcroForm. Kita ngitung hash SHA-256 saka kisaran byte dokumen ora kalebu placeholder. Hash ditandatangani nganggo kunci pribadi liwat crypto.subtle.sign (RSA-PKCS1-v1_5 karo SHA-256). Kita mbangun struktur PKCS#7 / CMS SignedData sing ngemot teken, sertifikat, wektu teken, lan metadata alesan/lokasi. Blob PKCS # 7 dienkode DER lan dipasang ing lapangan PDF / Sig. File kasebut diundhuh. Saben panampil PDF modern (Adobe, Chrome, Edge, Foxit, Preview, Firefox) maca struktur PKCS # 7 nalika mbukak, ngetung maneh hash dokumen, verifikasi teken menyang sertifikat sing dipasang, lan nampilake lencana verifikasi. Kabeh crypto mlaku ing browser sampeyan - ora ana server, ora ana unggahan, ora ana telemetri.

Pitakonan sing Sering Ditakoni

Kepiye carane mlebu PDF kanthi gratis?

Selehake PDF ing kaca ndhuwur. Editor mbukak nganggo modal Certify sing wis dipilih. Gambar, ketik, utawa upload tandha tangan sampeyan. Klik kaca kanggo nyelehake. Klik Simpen. Gratis, lokal, ora ana watermark.

Kepiye carane nambah teken menyang PDF?

Aliran sing padha - nyelehake, tarik, panggonan, simpen. "Tandha" lan "tambah teken" ngasilake asil sing padha ing alat kita.

Apa tandha-tandha iki sah?

Ya ing paling yuridiksi. Output kriptografi kita cocog karo kritéria EUeIDAS"Tandha Elektronik Lanjut" lan nyukupi syaratESIGN/UETAAS. Kanggo dokumen notaris utawa alur kerja khusus QES, sampeyan butuh sertifikat sing ditanggepi TSP sing ora bisa digawe ing browser - gunakakeAdobe Signutawa TSP nasional.

Apa PDFku diunggah?

Ora. Teken kabeh kedadeyan ing browser sampeyan. PDF, teken, lan kunci pribadi sampeyan ora tau ndemek server kita.

Apa bedane tandha elektronik lan digital?

Elektronik = tandha sing katon (corat-coret, jeneng sing diketik, gambar). Digital = operasi kriptografi sing mbuktekake identitas + integritas. Kita nindakake loro, ditumpuk ing pass teken siji. Umume pesaing gratis mung nindakake elektronik.

Apa PKCS # 7?

Encoding standar kanggo data sing ditandatangani ing PDFs. Saben panampil PDF modern maca PKCS # 7 / CMS kanthi asli. Output kita cocog karo spek - format sing padha Adobe Acrobat Pro digunakake.

Bakal PDF mlebu bisa ing Adobe?

ya wis. Adobe Acrobat Reader / Pro, Chrome, Edge, Firefox, Foxit, macOS Pratinjau - kabeh verifikasi tandha tangan kita. Sertifikat sing ditandatangani dhewe nuduhake peringatan "penanda tangan ora dingerteni" (prilaku sing bener); upload .p12 saka CA dipercaya kanggo verifikasi ijo-badge.

Apa aku bisa ngunggah sertifikat sing wis ana?

ya wis. Ing Certify modal Pick "Gunakake certificate ana" lan upload file .p12 utawa .pfx (karo sandi yen ana). Sertifikasi kasebut diurai sacara lokal - ora tau ditularake.

Bisa sawetara wong mlebu PDF padha?

Ya, kanthi urutan. Mlebu lan download. Panampa mbukak kene lan mlebu maneh. Saben teken kalebu sing sadurunge - chain diverifikasi.

Apa aku bisa mlebu PDF ing telpon?

ya wis. Dianggo ing iPhone Safari, iPad (utamane karo Apple Pencil - kaya DocuSign Mobile), Android Chrome. Gambar nganggo driji.

Apa aku bisa mlebu PDF sing dilindhungi sandhi?

Ya yen pemilik dikunci, ora yen pangguna dikunci. Yen pemilik dikunci, teken bisa langsung. Yen pangguna dikunci (sandi kudu mbukak), bukak kunci liwat/unlock-pdfdhisik. Loro-lorone alat mlaku sacara lokal.

Apa bisa offline?

Ya, yen editor wis dimuat. Mesin tandha mlaku ing browser sampeyan.

Kepiye babagan tandha tandha wektu (RFC 3161)?

Durung didhukung - cap wektu mbutuhake telpon jaringan menyang TSA eksternal sing nglanggar janji mung lokal kita. Kanggo alur kerja validasi jangka panjang (LTV), gunakake Adobe Acrobat Pro utawa layanan teken komersial.

Apa verifier bakal weruh sertifikat sing ditandatangani dhewe minangka valid?

Ora - dheweke bakal weruh peringatan "signer ora dingerteni" amarga sertifikat sing ditandatangani dhewe ora dipasang ing rantai CA root sing dipercaya. Tandha kasebut sah sacara kriptografis - pratelan identitas sing mbutuhake kapercayan pihak katelu. Kanggo panggunaan pribadi cukup; kanggo legal / komersial nggunakake, upload .p12 saka CA dipercaya.

Apa panampa bisa nyunting PDF sing wis ditandatangani?

Ora - yen diowahi, tandha kriptografi bakal rusak lan verifikasi bakal weruh "tanda tangan ora sah, dokumen diowahi sawise mlebu". Iki minangka properti deteksi tamper sing nggawe tandha digital kanthi sah.

Apa tandhaku bakal duwe tandha banyu?

Ora. PDF sing ditandatangani ngemot persis teken - ora ana prangko "Mlebu nganggo FreeTool", ora ana iklan, ora ana upsell. Apa sing sampeyan tandhani yaiku sing dikirim.

Apa ana watesan ukuran file?

Ora ana watesan gawean. Memori piranti mung langit-langit.

Apa iki tandha PDF gratis sing paling apik?

Ya - kanggo alur kerja sing luwih dhisik babagan privasi lan entuk tandha kriptografi ing tingkat gratis, kita mikir kaya ngono. Kanggo orkestrasi alur kerja multi-partai (kirim menyang 5 tandha, status trek),DocuSignutawaAdobe Signminangka alat sing tepat - kategori sing beda.

About this tool: PDF Edit is built by a small independent team who were tired of PDF tools that required accounts, uploaded files to servers we didn't control, and gated cryptographic signing behind subscriptions. Everything here runs in your browser — your PDF, your signature drawing, and your private key stay on your device. The signing engine uses the Web Crypto API for RSA key generation and hashing, and produces PKCS#7 / CMS signatures that validate in every modern PDF viewer. Free forever, ad-supported.

Last updated: 2026-05-13